JP2006072494A - Url information management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a URL information management system capable of efficiently managing URL. <P>SOLUTION: The URL management device M21 includes a connecting request information acquisition means m11, a URL examination execution means m13, and a URL management means m15. The connecting request information acquisition means m11 acquires connecting request information of requesting connection to a homepage of a URL contained in retrieval result information. The URL inspection execution means m13 executes, upon determining acquisition of the connecting request information, URL presence examination for examining whether the homepage of the URL corresponding to the connecting request information is present in this URL or not. The URL management means m15 stores examination results of URL examinations in association with URLs in a URL storage means. According to this, since the URLs stored in the URL storage means m19 can be managed using the URL presence examination results of whether homepages of URLs are present in the URLs or not, the management of URLs can be efficiently performed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a URL information management system for managing a URL stored in a URL storage means, and more particularly to a URL information management system for managing a URL based on the current status of a homepage corresponding to the URL on the network.

  FIG. 21 shows a website search system 101 which is an example of a conventional URL information management system. The website search system 101 includes a web server 110 and a search engine system 120 connected to each other via a network 130 such as the Internet. The search engine system 120 includes an information processing apparatus 121 that performs processing such as search and deletion of site information, and a site information database (hereinafter, site information) that stores site information related to URLs of all web pages registered in the search engine. DB) 122). In addition, the information processing apparatus 121 searches a website on the Internet and collects information on a web page provided on the site, and the collected site information is already registered in the site information DB 122. The site information registration unit 121b for updating each site information based on the search result and the identifier in the site information, and each URL registered in the site information DB 122 can be actually accessed. A site information confirmation unit 121c that confirms whether or not the site information is deleted, and a site information deletion unit 121d that deletes from the site information DB 22 site information of a URL that was not actually accessible by the site information confirmation unit 121c.

  Here, the operation of the search engine system 20 will be described with reference to FIG. The site information collection unit 121a acquires site information of a web page searched in the Internet (S201). Subsequently, the site information registration unit 121b searches for each URL whether or not the same URL as the searched web page has already been registered in the URL item in the site information DB 122 (S202, S203). When the same URL is already registered in the URL item in the site information DB 122, this processing operation ends.

  On the other hand, when the same URL is not registered in the URL item in the site information DB 122, the site information registration unit 121b further searches whether or not the same identifier has been registered in the identifier item in the site information DB 122. (S204).

  Here, the identifier is a number unique to the web server that the identifier assigning unit 11 gives to all the HTML files 14 in the web server 10. Moreover, even if the HTML file once assigned with an identifier is transferred to another web server, the identifier of the HTML file remains unchanged.

  In step S204, if the same identifier is not registered in the identifier item in the site information DB 122, it can be determined that the site of this URL is a new site searched for the first time, so the site information registration unit 121b The URL and identifier of the web page are registered in the site information DB 122 (S205). On the other hand, if the same identifier has already been registered in the identifier item in the site information DB 122 in step S204, it can be determined that this URL has been changed for some reason, and therefore the site information registration unit 121b has the site information DB 122. The URL item of the corresponding record is replaced with the URL of the web page and registered (S206). The above processing is performed for the site information of all the web pages acquired in step S201 (S207).

  As described above, according to the website search system 1 of the present embodiment, it is possible to automatically perform site information registration / update processing in the search engine system 20, and as a result, before the change that should originally be invalidated. Are not registered in the search engine system 20.

JP2003-345814

  The aforementioned website search system 101 has the following problems. In steps S202 and S203, it is determined whether or not the URL of the searched web page is the same as the URL in the site information DB 122. That is, it is determined whether or not the web page corresponding to the URL in the site information DB 122 still exists at the URL. In step S204, if the same URL is not registered in the URL item in the site information DB 122, it is searched whether or not the same identifier has been registered in the identifier item in the site information DB 122. That is, it is also determined whether or not the web page corresponding to the URL in the site information DB 122 has moved to another URL. In step S206, the URL of the corresponding record in the site information DB 122 is registered by replacing the URL in the site information DB 122 that can be determined to have been changed for some reason.

  However, the web page corresponding to the URL in the site information DB 122 cannot be confirmed to have been changed for some reason, that is, the web page corresponding to the URL in the site information DB 122 does not currently exist in the URL. However, what is not known about the transfer destination is not handled at all, and will continue to be stored in the site information DB 122 indefinitely. Therefore, when this site information DB 122 is searched, there is a problem that there is a URL that is displayed in the site information DB 122 even though it does not currently exist.

  Further, in the conventional website search system 101, for all URLs in the site information DB 122, a determination is made as to whether or not the web page corresponding to the URL in the site information DB 122 has been moved to another URL in step S202. is doing. Therefore, there is a problem that it takes time to update the URL in the site information DB 122.

  SUMMARY An advantage of some aspects of the invention is that it provides a URL information management system capable of efficiently managing URLs.

  Means for solving the problems relating to the present invention and effects of the present invention will be described below.

  In the URL management system according to the present invention, when the search device acquires the search request information and determines that the search request information has been acquired, the search device searches the URL corresponding to the search information, and the search result is based on the searched URL. Information is generated and the search result information is provided, and the URL management apparatus acquires connection request information for requesting connection to the homepage of the URL included in the search result information, and determines that the connection request information has been acquired. Then, a URL presence check is performed to check whether or not a URL homepage corresponding to the connection request information exists in the URL, and the URL storage means is associated with the URL search result and the URL. Remember.

  As a result, the URL stored in the URL storage means can be managed using the URL existence investigation result as to whether or not the URL home page exists in the URL, so that the URL can be efficiently managed. Become.

  Further, since the URL presence check is executed for the URL requested by the user and the URL presence check is not performed for the URL without access, efficient URL management is possible.

  The URL management device according to the present invention acquires connection request information for requesting connection to a homepage corresponding to a URL included in search result information that is a search result of a URL performed on the search device, and the connection request If it is determined that the information has been acquired, a URL presence check is performed to check whether or not the URL homepage corresponding to the connection request information exists in the URL, and the URL search result and the URL are associated with the URL. Store in the storage means.

  As a result, the URL stored in the URL storage means can be managed using the URL existence investigation result as to whether or not the URL home page exists in the URL, so that the URL can be efficiently managed. Become.

  Further, since the URL presence check is executed for the URL requested by the user and the URL presence check is not performed for the URL without access, efficient URL management is possible.

  The URL management device according to the present invention acquires search result information that is a URL search result performed on the search device, and determines that the search result information has been acquired, the URL of the URL included in the search result information A URL presence check is performed to check whether a home page exists in the URL, and the URL storage means is stored in association with the URL check result and the URL.

  As a result, the URL stored in the URL storage means can be managed using the URL existence investigation result as to whether or not the URL home page exists in the URL, so that the URL can be efficiently managed. Become.

  In addition, since the URL existence investigation is executed for all URLs included in the search result information, the URL update interval is shortened, and efficient URL management becomes possible.

  The URL management device according to the present invention acquires connection request information for requesting connection to a homepage corresponding to the URL, and determines that the connection request information has been acquired, the homepage of the URL corresponding to the connection request information A URL presence check is performed to check whether the URL exists or not, and the URL check result is stored in the URL storage means in association with the URL.

  As a result, for example, the URL described in the link collection can be managed using the URL existence investigation result as to whether or not the URL home page exists in the URL. It becomes possible.

  In the URL management system or the URL management apparatus according to the present invention, if it is determined that there is no home page of the URL corresponding to the connection request information or the search result information, the home page is the connection request information or the search. A different URL existence investigation is performed for investigating whether or not a URL different from the URL corresponding to the result information exists, and the difference URL existence investigation result and the URL corresponding to the connection request information or the search result information Are associated and stored in the URL storage means.

  As a result, it becomes possible to manage the URL using the result of the difference URL existence investigation as to whether or not the URL has been changed to another different URL. Therefore, when the URL is changed to another different URL, it is possible to efficiently manage the URL such as deleting it.

  In the URL management system or URL management device according to the present invention, if it is determined that the homepage does not exist in a URL different from the URL corresponding to the connection request information or the search result information, a higher-order URL for the different URL is displayed. An upper computer existence investigation for investigating whether there is a computer is executed, and the upper computer existence investigation result and the URL corresponding to the connection request information or the search result information are associated and stored in the URL storage means.

  As a result, it becomes possible to manage URLs using the result of the high-level computer existence investigation as to whether or not there is a computer having a high-level URL for different URLs. Therefore, it is possible to efficiently manage URLs such as deleting when there is no host computer.

  In the URL management system or the URL management device according to the present invention, if it is determined that there is no computer having a higher URL with respect to the different URL, specific information for specifying the higher URL can be obtained from the higher URL. A specific information investigation for investigating whether or not it is possible is executed, and the specific information investigation result and the URL corresponding to the connection request information or the search result information are associated and stored in the URL storage means.

  As a result, it becomes possible to manage the URL using the result of the specific information investigation as to whether or not the specific information specifying the upper URL can be obtained. Therefore, it is possible to efficiently manage URLs, such as deleting URLs when specific information for specifying higher-level URLs cannot be obtained.

  In the URL management system or URL management device according to the present invention, if it is determined that the specific information for specifying the higher URL cannot be obtained from the higher URL, the higher URL is obtained from the URL information storage means. Delete the included URL.

  As a result, when the specific information for specifying the upper URL cannot be obtained, the information is deleted, so that the URL can be efficiently managed.

  In the URL management system or URL management device according to the present invention, if it is determined that the specific information for specifying the higher URL can be obtained from the higher URL, the specific information investigation result and the higher URL are obtained. The associated URL information is stored in the upper URL information storage means.

  Thereby, it is possible to manage a computer having a higher-level URL that can be specified by the specific information. Therefore, URLs having the same upper URL among the URLs stored in the URL information storage means can be collectively managed by using the upper URL information storage means.

  In the URL management system or the URL management device according to the present invention, the URL existence investigation, the different URL existence investigation, the upper computer existence investigation, or the specific information investigation is performed, and the URL included in the connection request information is further determined. Whether or not a predetermined time has elapsed since the URL information investigation, the difference URL existence investigation, the upper computer existence investigation, or the specific information investigation was performed in the URL information storage device in association with the URL information storage device. And if it is determined that a predetermined time has elapsed from the time when the URL existence investigation, the difference URL existence investigation, the upper computer existence investigation, or the specific information investigation is performed, Existence investigation, difference URL existence investigation, host computer existence investigation, or specific information investigation To.

  Thereby, since each investigation can be performed at a predetermined interval, efficient URL management becomes possible.

  In the URL management system or URL management apparatus according to the present invention, the number of investigations related to the URL existence investigation, the different URL existence investigation, the upper computer existence investigation, or the specific information investigation is further associated with the URL included in the connection request information. Stored in the URL information storage device, and the number of investigations related to the URL existence investigation, the different URL existence investigation, the upper computer existence investigation, or the specific information investigation in the URL information storage device is greater than or equal to a predetermined number of times. If it is determined whether the number of investigations is equal to or greater than a predetermined number or greater than a predetermined number, the URL corresponding to the number of investigations is deleted from the URL information storage device.

  As a result, URLs that have been surveyed for a certain number of times or more are deleted, so efficient URL management becomes possible.

  In the URL management system or the URL management device according to the present invention, the timing for investigating whether or not the number of investigations in the URL information storage device is greater than or equal to a predetermined number or greater than a predetermined number is based on the number of investigations. To decide.

  As a result, the survey interval can be changed depending on the number of surveys, so that efficient URL management is possible.

  In the URL management system or the URL management apparatus according to the present invention, the URL presence survey, the different URL presence survey, the host computer presence survey, or the result of the specific information survey and the URL stored in the URL information storage means are further stored. The URL information storage means stores the information in association with display availability information indicating whether or not to include the search result information.

  Thereby, it is possible to determine whether or not to display the corresponding URL as the search result information based on the results of each investigation. Therefore, when the home page does not exist in the corresponding URL, display processing such as not displaying as a search result is possible, so that it is possible to improve the convenience of the user who performs the search.

  In the URL management system or the URL management apparatus according to the present invention, the URL presence survey, the different URL presence survey, the host computer presence survey, or the result of the specific information survey and the URL stored in the URL information storage means are further stored. When displaying it as search result information, it is stored in the URL information storage means in association with display order information indicating the order.

  Thereby, it is possible to determine whether or not to display the corresponding URL as the search result information based on the results of each investigation. Therefore, when it is unclear whether or not the home page actually exists in the corresponding URL, display processing such as decrementing the order of display as a search result becomes possible, improving the convenience of the user who performs the search. It becomes possible.

  Here, the correspondence relationship between the elements described in the claims and the elements in the embodiment is shown. The URL management system corresponds to the URL management system 1, the URL management device corresponds to the URL management device 21 and the URL DB server 29, and the search device corresponds to the search server 23.

  The search request information acquisition means corresponds to the CPU 311 and the communication circuit 318, the search means corresponds to the CPU 311, the search result information generation means corresponds to the CPU 311, and the search result information provision means corresponds to the CPU 311 and the communication circuit 318.

  The connection request information acquisition means is the CPU 211 and the communication circuit 218, the URL investigation execution means is the CPU 211, the URL management means is the CPU 211, the URL storage means is the hard disk 913 of the URLDB server 29, and the search result information acquisition means is the CPU 211 and the communication circuit. The upper URL information storage means corresponds to the hard disk 113 of the URL management device 21.

  URL request management means performs the process of step S1, URL investigation execution means performs the processes of steps S3 to S9, S301 to S307, S401 to S404, S411 to S419, S501 to S504, S700 to S704, and S802 to S804. The means executes steps S1001 to S1007, S1101 to S1109, S1201 to S1207, and S1301 to S1319, respectively.

  The search request information is the access from the user terminal to the search server 23, the search result information is the search result from the search server 23 to the user terminal, the upper URL is the URL of the host computer, and the computer having the upper URL is the host computer Further, the specific information corresponds to the IP address, the display availability information and the display order information correspond to the value in the [URL status] column of the registered URL DB and the screen control table, respectively.

  “URL presence check” corresponds to the URL presence check shown in steps S3 and S301 to S307.

  The “difference URL presence check” corresponds to the transition destination URL presence check shown in steps S5 and S401 to S404.

  The “upper computer existence investigation” corresponds to the upper computer existence investigation shown in steps S7, S411 to S419, S700 to S704, and S802 to S804.

  The “specific information check” corresponds to the IP address conversion check shown in steps S9 and S501 to S504.

  An embodiment of the URL information management system according to the present invention will be described below.

1. Outline An outline of a URL information management system according to the present invention will be described with reference to a functional block diagram shown in FIG. The URL information management system 1 includes a URL management device M21 and a search device M23. The URL management device M21 manages the URL stored in the URL storage unit m19 that stores the URL of the home page. The search device M23 searches the URL of the home page.

  The search device M23 includes search request information acquisition means m31, search means m33, search result information generation means m35, and search result information provision means m37. The search request information acquisition unit m31 acquires search request information. When it is determined that the search request information has been acquired, the search unit m33 searches for a URL corresponding to the search information. The search result information generation unit m35 generates search result information based on the URL searched by the search unit. The search result information providing unit m37 provides search result information.

  The URL management device M21 includes connection request information acquisition means m11, URL investigation execution means m13, and URL management means m15. The connection request information acquisition unit m11 acquires connection request information for requesting connection to the homepage of the URL included in the search result information. When the URL investigation execution unit m13 determines that the connection request information has been acquired, the URL investigation execution unit m13 executes a URL existence investigation for examining whether or not the URL home page corresponding to the connection request information exists in the URL. The URL management unit m15 stores the URL search result in association with the URL and the URL storage unit.

  As a result, the URL stored in the URL storage unit m19 can be managed using the URL existence investigation result as to whether or not the URL homepage exists in the URL, so that the URL can be efficiently managed. It becomes. Further, since the URL presence check is executed for the URL requested by the user and the URL presence check is not performed for the URL without access, efficient URL management is possible.

2. Hardware configuration
2.1. Hardware Configuration of URL Information Management System 1 The hardware configuration of the URL information management system 1 will be described with reference to FIG. The URL information management system 1 includes a URL information management device 21, a search server 23, and a URL database server (hereinafter referred to as URLDB server) 29. The URL DB server 29 stores the URL of the home page. The URL information management device 21 manages URLs stored in the URL DB server 29. The search server 23 searches the URL of the home page.

2.2. Hardware Configuration of URL Information Management Device 21 The hardware configuration of the URL information management device 21 will be described with reference to FIG. The URL information management device 21 includes a CPU 211, a memory 212, a hard disk 213, and a communication circuit 218.

  The CPU 211 performs processing based on other applications such as an operating system (OS) and URL information management program recorded on the hard disk 213. The memory 212 provides a work area for the CPU 211. The hard disk 213 records and holds other applications such as an operating system (OS) and a URL information management program and various data. The data recorded on the hard disk 213 will be described later.

  The communication board 218 has a communication circuit connected to a network, and transmits / receives data to / from an external communication device.

  Note that a keyboard 214, a mouse 215, a display 216, and a CD-ROM drive 217 are connected to the URL information management device 21. The keyboard 214 and the mouse 215 accept external commands. The display 216 displays an image such as a user interface. The CD-ROM drive 217 reads data from the CD-ROM, such as reading a URL information management program from the CD-ROM 210 in which the URL information management program is recorded and a program of another application from another CD-ROM. .

2.3. Hardware Configuration of Search Server 23 The hardware configuration of the search server 23 will be described with reference to FIG. The search server 23 includes a CPU 311, a memory 312, a hard disk 313, and a communication circuit 318.

  The CPU 311 performs processing based on other applications such as an operating system (OS) and a search server program recorded in the hard disk 313. The memory 312 provides a work area for the CPU 311. The hard disk 313 records and holds other applications such as an operating system (OS) and a search server program and various data.

  The communication board 318 has a communication circuit connected to a network, and transmits / receives data to / from an external communication device.

  Note that a keyboard 314, a mouse 315, a display 316, and a CD-ROM drive 317 are connected to the search server 23. The keyboard 314 and the mouse 315 accept external commands. The display 316 displays an image such as a user interface. The CD-ROM drive 317 reads data from the CD-ROM, such as reading a search server program from the CD-ROM 310 in which the search server program is recorded and another application program from another CD-ROM.

2.4. Hardware Configuration of URLDB Server 29 The hardware configuration of the URLDB server 29 will be described with reference to FIG. The URLDB server 29 includes a CPU 911, a memory 912, a hard disk 913, and a communication circuit 918.

  The CPU 911 performs processing based on other applications such as an operating system (OS) and a URLDB server program recorded on the hard disk 913. The memory 912 provides a work area for the CPU 911. The hard disk 913 records and holds other applications such as an operating system (OS) and a URLDB server program and various data. The data recorded on the hard disk 913 will be described later.

  The communication board 918 has a communication circuit connected to a network, and transmits / receives data to / from an external communication device.

  Note that a keyboard 914, a mouse 915, a display 916, and a CD-ROM drive 917 are connected to the URLDB server 29. The keyboard 914 and the mouse 915 accept external commands. The display 916 displays an image such as a user interface. The CD-ROM drive 917 reads data from the CD-ROM, such as reading the URLDB server program from the CD-ROM 910 in which the URLDB server program is recorded and other application programs from other CD-ROMs.

3. Data The hard disk 213 of the URL information management apparatus 21 records and holds a screen control table, an unidentified host database (existence unconfirmed host DB), and a maintenance table. The hard disk 213 of the URL DB server 29 records and holds a registration URL database (hereinafter, registration URL DB).

3.1. Registration URLDB
In the registered URL DB recorded and held in the hard disk 913 of the URL DB server 29, the URL acquired by the search server 23 and the current state of the home page corresponding to the URL on the network are registered in association with each other. An example of the registered URL DB is shown in FIG.

  The registered URL DB has a [Registered URL] column, a [Survey Time] column, a [URL Status] column, and a [Number of Surveys] column.

  In the [Registered URL] column, URLs collected by the search server 23 are described. In the present embodiment, as a URL to be described, in addition to the general URL format (http://www.abcd.co.jp/efg/aa.htm), the general URL format is a predetermined URL. There are two types of URLs (update flag addition URL) format (http://www.abcd.co.jp/efg/aa.htm?Check=ON) with an update flag added. The update flag is a flag added when a predetermined interval is exceeded from the previous access time in a certain URL.

  In the [Investigation time] column, the time when the URL survey, which is a survey for grasping the current state of the homepage on the network corresponding to the URL described in the [Registered URL] column, is described.

  In the [URL status] column, the current status of the URL described in the [URL] column is described. In the present embodiment, “with URL”, “with URL transition”, “without URL transition”, “host does not exist”, and “access prohibited” are defined as URL states.

  “With URL” means that a home page corresponding to the URL registered in the registered URL DB exists in the URL.

  “With URL transition” means that the home page corresponding to the URL registered in the registered URL DB exists in a URL different from the URL, and the same hierarchy as the URL different from the URL registered in the registered URL DB or This means that a homepage corresponding to a URL in a lower hierarchy than the same hierarchy exists in the different URL.

  “The transition destination URL does not exist” means that the homepage corresponding to the URL registered in the registered URL DB cannot be determined to exist in a URL different from the URL, but the URL registered in the registered URL DB is It means that it is possible to connect to a host computer with a different URL.

  “Host does not exist” means that a host computer having a URL different from the URL registered in the registered URL DB cannot be connected, but a URL having a URL different from the URL registered in the registered URL DB can be converted into an IP address. Means.

  “Access prohibited” means that a URL or the like registered in the registered URL DB cannot be accessed.

  In the [Number of investigations] column, the number of URL investigations when the value of the [URL status] column is “No URL transition” is described.

3.2. Screen Control Table The screen control table recorded and held in the hard disk 213 of the URL information management device 21 displays the current state of the homepage corresponding to a URL on the network and the URL on the display 216 as search result information. Whether or not is registered in association with each other. An example of the screen control table is shown in FIG.

  The screen control table has a [URL status] column and a [Screen display] column. In the [URL status] column, the type of the current status on the network of the homepage corresponding to a certain URL is described. In the present embodiment, “URL present”, “URL transition present”, “URL transition absent”, “Host does not exist”, and “Access prohibited” are defined as values of the [URL status] column. The definition of each value is the same as the [URL status] column in the registered URL DB.

  In the [Screen Display] column, a screen display control rule indicating how the registered URL having the state described in the [URL State] column is displayed on the display 216 is described. In the present embodiment, “not display”, “display”, and “display. Last display order” are defined as values in the “screen display” column. “Do not display” means that the corresponding URL is not displayed as search result information on the display 216. “Display” means that the corresponding URL is displayed as search result information on the display 216. “Display. Last in display order” means that the corresponding URL is displayed as search result information on the display 216, but is displayed at the end of the URL displayed as the search result.

  In this embodiment, as a screen display control rule, if the current state of the homepage corresponding to a certain URL on the network is “no host” or “no transition destination URL”, “display URL” is displayed. In the case of “access prohibition”, “the display priority is made last”. Therefore, in the screen control table of FIG. 7, the value “not displayed” in the “screen display” column is described corresponding to the values “host does not exist” and “transition destination URL does not exist” in the [URL status] column. Is done. In addition, the value “displayed in the last display order” in the “screen display” column is described in correspondence with the value “access prohibited” in the “URL status” column. In this way, by defining a screen display control rule corresponding to the URL state in advance, the appearance when the registered URL is displayed on the display 216 as a search result is adjusted.

3.3. Unexisting host DB
In the presence-unconfirmed host DB recorded and held in the hard disk 213 of the URL information management device 21, the URL of the host computer corresponding to a URL and the current state of the host computer on the network are registered in association with each other. An example of an unconfirmed host DB is shown in FIG.

  The unconfirmed host DB has a [Host URL] column, a [Investigation time] column, and a [Number of investigations] column. In the [Host URL] column, the URL of the host computer is described. In the [Investigation time] column, the time when the host existence investigation or the host existence re-examination is performed on the host computer having the URL described in the [Host URL] column is described. In the [Number of investigations] column, the number of times the host existence investigation or the host existence re-examination was performed is described. The host computer, the host presence check, and the host presence recheck are described later.

3.4. Maintenance Table In the maintenance table recorded and held in the hard disk 213 of the URL information management device 21, whether or not the current state of the homepage corresponding to a URL on the network and its URL are displayed on the display 216 as search result information. Is registered in association with the judgment. The maintenance table includes a URL investigation maintenance table that is a maintenance table based on the number of URL investigations and a host investigation maintenance table that is a maintenance table based on the number of host investigations. The URL investigation maintenance table is shown in FIG. 9A, and the host investigation maintenance table is shown in FIG. 9B.

  As shown in FIG. 9A, the URL search maintenance table has a [URL search count] column and a [search interval] column. In the [URL investigation count] column, the number of investigations such as URL existence investigation is described. In the [Survey interval] column, the interval until the next survey is described for URLs that have been surveyed the number of times described in the [URL survey count] column.

  On the other hand, as shown in FIG. 9B, the host investigation maintenance table has a “host investigation count” column and a “survey interval” column. In the [Number of Host Checks] column, the number of times the host presence check was performed is described. In the [Investigation Interval] column, the interval until the next investigation is described for the host computer that has been subjected to the host existence investigation as many times as described in the [Host Investigation Count] column.

4. Operation of URL information management device 21
4.1. Overview A user accesses the search server 23 from a user terminal when searching a home page. When the CPU 311 of the search server 23 determines that there is an access from the user, the CPU 311 performs a predetermined search process on the URL DB server 29 and transmits the search result to the user terminal.

  The search result transmitted from the CPU 311 to the user terminal may include an update flag addition URL. When an update flag addition URL is included in the search result, the CPU 311 indicates that, when the user selects an update flag addition URL, connection request information indicating that a connection is desired to the update flag addition URL is URL information management. A search result is constructed so as to be transmitted to the device 21. As a method of transmitting the connection request information to the URL information management device 21 in this way, there is a method of embedding a program, script, tag, or the like in the search result.

  Further, the search result transmitted at this time is constructed using the screen control table. That is, the CPU 311 acquires the value of the corresponding [URL status] column for each URL included in the search result, and further acquires the value of the corresponding [screen display] column in the screen control table. Build search results based on values in the Display column. As a result, information that is not useful as the search result is not displayed on the display of the user terminal that has acquired the search result, such as the absence of a link destination corresponding to the URL, or is displayed at the end. Search results can be used.

  An outline of the operation of the URL management device 21 will be described with reference to FIG. When the CPU 211 of the URL management device 21 determines that the connection request information has been acquired (S1), a URL for investigating whether the update flag addition URL home page corresponding to the connection request information exists in the update flag addition URL. Existence investigation is executed (S3).

  If the CPU 211 determines that the homepage of the update flag addition URL corresponding to the connection request information does not exist in the update flag addition URL, does the CPU 211 exist in a URL different from the update flag addition URL corresponding to the connection request information? A transition destination URL existence investigation for examining whether or not is performed, and the transition destination URL existence investigation result and the update flag addition URL corresponding to the connection request information are associated with each other and stored in the registered URL DB stored in the hard disk 913 of the URL DB server 29. (S5).

  When the CPU 211 determines that the home page does not exist in a URL different from the update flag addition URL corresponding to the search result information, the host 211 investigates whether there is a host computer having a higher URL with respect to the different URL. The investigation is executed, and the host existence investigation result and the update flag addition URL corresponding to the connection request information are associated with each other and stored in the registered URL DB stored in the hard disk 913 of the URL DB server 29 (S7).

  Further, when the CPU 211 determines that there is no host computer having a higher URL with respect to the different URL, the IP address for investigating whether or not an IP address for specifying the higher URL can be obtained from the higher URL. The conversion check is executed, and the IP address conversion check result and the update flag addition URL corresponding to the connection request information are associated with each other and stored in the registered URL DB stored in the hard disk 913 of the URL DB server 29 (S9). If the CPU 211 determines that an IP address that identifies the upper URL can be obtained from the upper URL, the CPU 211 associates the IP address conversion investigation result with the upper URL in the hard disk 113 of the URL information management device 21. The stored unconfirmed host DB is stored (S11).

  Further, the CPU 211 determines whether or not a predetermined time has elapsed since the time of performing the URL existence investigation, the transition destination URL existence investigation, the host existence investigation, or the IP address conversion investigation. If it is determined that a predetermined time has elapsed from the time when the presence check, the host presence check, or the IP address conversion check is performed, for the corresponding URL, the URL presence check, the transition destination URL presence check, the host presence check, or the IP The address conversion investigation is executed, and the registration URL DB is updated by associating each investigation result with the URL stored in the registration URL DB (S13).

  In the following, the URL presence check process (S3), the transition destination URL presence check process (S5), the host presence check process (S7), the IP address conversion check process (S9, S11), and the maintenance process (S13) will be described.

4.1.1 URL Presence Investigation Process The URL existence investigation process when the user selects the update flag addition URL will be described with reference to the flowchart shown in FIG. The CPU 211 of the URL information management device 21 changes the homepage corresponding to the update flag addition URL (hereinafter referred to as the original homepage) to the update flag addition URL (specifically, the URL obtained by removing the update flag from the update flag addition URL). It is determined whether or not it exists (S303). Whether the original home page exists in the update flag addition URL is determined by whether the CPU 211 can actually access the home page corresponding to the update flag addition URL.

  When the CPU 211 determines that the original home page does not exist in the update flag addition URL, the transition destination URL exists to determine whether or not the original home page may have been moved to another URL (hereinafter referred to as a transition destination URL). Investigation processing is executed (S305).

  On the other hand, if the CPU 211 determines that the original home page exists in the update flag addition URL, the value of the [URL status] column of the registered URL DB is set to “URL present”, the value of the [Investigation time] column is set to the current time, The value in the “Number of times” column is updated to “0” (S307).

4.1.2 Transition Destination URL Presence Investigation Process Next, the transition destination URL existence investigation process will be described with reference to the flowchart shown in FIG. If the CPU 211 determines in step S303 (see FIG. 11) that the original homepage does not exist in the update flag addition URL, there is a possibility that the original homepage may have moved to another URL (hereinafter referred to as a transition destination URL). Is determined (S401). For example, an HTTP status code is used to determine whether the original home page may have moved to the transition destination URL. If the HTTP status code is “301” or the like, this indicates that the original homepage may have been moved to the transition destination URL.

  If the CPU 211 determines in step S401 that there is a possibility that the original home page has moved to the transition destination URL, the CPU 211 determines whether the original home page actually exists in the transition destination URL (S402). Whether or not the original home page actually exists in the transition destination URL is determined by whether or not the CPU 211 can actually access the original home page.

  If the CPU 211 determines in step S402 that the original home page exists in the transition destination URL, the value of the [URL status] column of the registered URL DB is set to “URL transition exists”, and the value of the [survey time] column is set to the current time. The value in the [Number of investigations] column is updated to “0” (S403).

  On the other hand, if the CPU 211 determines in step S402 that the original home page does not exist in the transition destination URL, the CPU 211 executes a host presence check process (S404). The host presence check process will be described later.

  If the CPU 211 determines in step S401 that there is no possibility that the original home page has moved to the transition destination URL, the value of the [URL state] column of the registered URL DB is set to “transition destination URL does not exist” and [survey time]. The value of the column is updated to the current time, and the value of the [Number of investigations] column is updated to “1” (S405).

4.1.3 Host Presence Check Process Next, the host presence check process will be described with reference to the flowchart shown in FIG. If the CPU 211 determines in step S402 (see FIG. 11) that the original home page does not exist in the transition destination URL, the CPU 211 determines whether or not the host computer (hereinafter referred to as host) of the transition destination URL can be accessed (S411). The host has a URL of “http://www.abcd.co.jp” when the transition destination URL is “http://www.abcd.co.jp/efg/aa.htm”. A computer.

  If the CPU 211 determines in step S411 that it cannot access the host of the transition destination URL, it updates the value in the [URL status] column of the registered URL DB (see FIG. 6) to “cannot connect to host” (S413). Thereafter, the CPU 211 executes an IP address conversion investigation process (S415). The IP address conversion investigation process will be described later.

  On the other hand, if the CPU 211 determines in step S411 that the host of the transition destination URL can be accessed, the value of the [URL status] column of the registered URL DB is set to “no transition destination URL”, and the value of the [survey time] column is set to the current value. The value in the [Number of investigations] column is updated to “1” at the time of (S417).

  Here, if the host exists but the original homepage does not exist in the transition destination URL, there is a possibility that not all the sites related to the original homepage exist. In this case, there is a possibility that there is no home page corresponding to the transition destination URL and “URL in the same hierarchy” or “URL in the hierarchy lower than the same hierarchy”. Therefore, the CPU 211 executes a site existence investigation process for examining whether or not a homepage corresponding to each URL exists in the “destination URL” or the “lower hierarchy URL” with the transition destination URL. (S419). Here, the “same level URL” is, for example, “http://www.xxww.ne” for the URL “http://www.xxww.ne.jp/zzz/bb.htm”. URL such as “.jp / zzz / fff.htm” and “URL lower than the same hierarchy” means “http://www.xxww.ne.jp/zzz/ ・ ・ ・ ・ ・ / ZZ A URL such as “.htm”.

4.1.4 IP Address Translation Investigation Process The IP address translation investigation process performed by the CPU 211 will be described with reference to FIG. The CPU 211 determines whether or not the host URL can be converted into an IP address (S501). Specifically, for example, a DNS (Domain Name System) server is accessed to check whether an IP address corresponding to the URL of the host exists.

  If the CPU 211 determines in step S501 that the host URL cannot be converted into an IP address, the CPU 211 determines that the host does not exist on the network, and the registered URL registered in the registered URL DB includes the same host URL. All are deleted from the registered URL DB (S502).

  On the other hand, when the CPU 211 determines in step S501 that the host URL can be converted into an IP address, the host URL is displayed in the [Host URL] column of the unconfirmed host DB (see FIG. 8), and the current time is stored in the [Investigation time] column. Is described in the [Number of investigations] column, and the existence unconfirmed host DB is updated (S503). If it is determined in step S404 that the host cannot be connected, but the host URL can be converted into an IP address, all of the registered URLs including the same host URL are not deleted from the registered URL DB. This is because there is a possibility that it could not be connected to the host due to reasons such as being dropped.

  Thereafter, the CPU 211 sets the value of the [URL status] column to “host does not exist” for the registration URL of the registration URL DB (see FIG. 6) including the same URL as the host, and updates the registration URL DB (S504).

4.1.5 Site Presence Investigation Process The site presence investigation process performed by the CPU 211 will be described with reference to FIG. The CPU 211 extracts an arbitrary registered URL from the registered URL DB (S700), and whether or not the extracted registered URL is the same hierarchy as the transition destination URL or a lower hierarchy than the same hierarchy (hereinafter referred to as a lower URL). Is determined (S701). When the CPU 211 determines that the extracted registration URL is a lower URL, the CPU 211 determines whether or not the value of the [URL state] corresponding to the registration URL extracted in step S700 is “URL transition exists” in the registration URL DB. (S702). When the CPU 211 determines that the value of the corresponding [URL status] is “URL transition exists”, the CPU 211 checks again whether the home page corresponding to the lower URL currently exists in the transition destination URL corresponding to the lower URL. The lower URL existence investigation process is executed (S703). The lower URL existence investigation process will be described later. The CPU 211 performs the processing of steps S701, S702, and S703 for all registered URLs (S704).

  Here, the lower URL existence investigation processing will be described with reference to FIG. The CPU 211 determines whether or not a homepage corresponding to the lower URL (hereinafter referred to as a lower homepage) actually exists in the corresponding transition destination URL (S802). The CPU 211 determines whether or not the lower-level homepage actually exists in the transition destination URL based on whether or not the transition destination URL can actually be accessed.

  If the CPU 211 determines in step S802 that a lower-order home page exists in the transition destination URL, the value of the [URL status] column of the registered URL DB is set to “URL transition exists”, the value of the [survey time] column is set to the current time, [ The value in the “Number of investigations” column is updated to “0” (S803).

  On the other hand, if the CPU 211 determines in step S802 that the lower-level home page does not exist in the transition destination URL, the value of the [URL state] column of the registered URL DB is set to “No transition destination URL” column. Is updated to the current time, and the value in the [Number of investigations] column is updated to a value obtained by adding “1” to the current value (S804).

4.1.6 Maintenance Process Next, the maintenance process performed by the CPU 211 will be described with reference to FIGS. The maintenance process is a database maintenance process performed for each predetermined period for the registered URL DB and the host DB whose existence has not been confirmed. In the present embodiment, the process is executed once a day for the URL registered in the registered URL DB and the host registered in the existence unconfirmed host DB.

  The maintenance process for the registered URL DB will be described with reference to FIGS. As illustrated in FIG. 17, the CPU 211 extracts, from the registered URL DB (see FIG. 6), a value whose “URL status” column is “URL transition exists” (S 1001). In the registration URL DB, the CPU 211 obtains a value of the [Number of investigations] column corresponding to the extracted registration URL (S1002). Next, in the URL search maintenance table (see FIG. 9A), the CPU 211 sets the value in the [Survey interval] column corresponding to the value in the [Number of surveys] column acquired in Step S1002. Obtain (S1003).

  The CPU 211 acquires the value of the [survey time] column corresponding to the registration URL extracted in step S1001 (S1004). Then, the CPU 211 determines whether or not the current time exceeds the value obtained by adding the value in the [survey time] column acquired in step S1004 and the value in the [survey interval] column acquired in step S1003 (S1005). .

  If the CPU 211 determines that the current time exceeds the value obtained by adding the value in the [survey time] column and the value in the [survey interval] column, the CPU 211 performs a transition destination URL presence investigation process (S1006). Note that the transition destination URL existence investigation process in step S1006 is the same as the transition destination URL existence investigation process shown in FIG. The CPU 211 performs the processing of steps S1001 to S1003 for all URLs (S1007).

  Next, as illustrated in FIG. 18, the CPU 211 extracts, from the registered URL DB (see FIG. 6), a value in the “URL status” column that “no transition destination URL exists” (S 1101). The CPU 211 acquires the value of the [number of investigations] column corresponding to the extracted registration URL in the registration URL DB (S1102). Next, in the URL search maintenance table (see FIG. 9A), the CPU 211 sets the value in the [Survey interval] column corresponding to the value in the [Number of surveys] column acquired in Step S1102 in the [URL search count] column. Obtain (S1103).

  The CPU 211 acquires the value of the [survey time] column corresponding to the registration URL extracted in step S1101 (S1104). Then, the CPU 211 determines whether or not the current time exceeds a value obtained by adding the value of the [survey time] column acquired in step S1104 and the value of the [survey interval] column acquired in step S1103 (S1105). .

  If the CPU 211 determines that the current time exceeds the value obtained by adding the value in the [survey time] column and the value in the [survey interval] column, the CPU 211 performs a transition destination URL presence investigation process (S1106). Note that the transition destination URL existence investigation process in step S1106 is the same as the transition destination URL existence investigation process in FIG.

  The CPU 211 determines whether or not the value in the [Number of investigations] column exceeds a predetermined value for a registered URL subjected to the transition destination URL existence investigation process (S1107). If the CPU 211 determines that the predetermined number of times has been exceeded, the CPU 211 deletes all data corresponding to the registered URL extracted in step S1101 from the registered URL DB (S1108). The CPU 211 performs the processing of steps S1101 to S1106 for all URLs (S1109).

  Next, the maintenance process for the unidentified host DB will be described with reference to FIGS. 19 and 20. As shown in FIG. 19, the CPU 211 extracts the value of the [Host URL] column of the unconfirmed host DB (see FIG. 8) (S1201). The CPU 211 obtains a value of the [Number of investigations] column corresponding to the extracted [Host URL] column (S1202). Next, in the host investigation maintenance table (see FIG. 9B), the CPU 211 sets the value of the [survey interval] column corresponding to the value of the [number of investigations] column acquired in step S1202 in the [host investigation count] column. Obtain (S1203).

  The CPU 211 obtains the value of the [survey time] column corresponding to the host URL extracted in step S1201 in the unidentified host DB (see FIG. 8) (S1104). Then, the CPU 211 determines whether or not the current time exceeds the value obtained by adding the value in the [survey time] column acquired in step S1204 and the value in the [survey interval] column acquired in step S1203 (S1205). .

  If the CPU 211 determines that the current time exceeds the value obtained by adding the value in the [survey time] column and the value in the [survey interval] column, the CPU 211 executes the existence unconfirmed host DB update process (S1206). Details of the host presence investigation victory will be described later. The CPU 211 performs the processing of steps S1201 to S1203 for all URLs (S1207).

  An unidentified host DB update process performed by the CPU 211 will be described with reference to FIG. The CPU 211 determines whether or not the host having the host URL extracted in step S1201 can be accessed (S1301). If the CPU 211 determines that the host can be accessed, the value in the [Number of investigations] column is updated to “0” for all registered URLs that include the same host URL in the “Registered URL” column in the registered URL DB (see FIG. 6). (S1302). Then, the CPU 211 executes a transition destination URL existence confirmation process (see FIG. 8) in order to confirm whether or not a home page corresponding to the registered URL exists in the transition destination URL (S1303). Thereafter, the CPU 211 deletes the host URL extracted in step S1201 from the unidentified host DB (see FIG. 8) because the host exists (S1304).

  If the CPU 211 determines in step S1301 that the host corresponding to the host URL extracted in step S1201 cannot be accessed, it determines whether the extracted host URL can be converted into an IP address (S1311).

  If the CPU 211 determines that the host URL cannot be converted into an IP address, the CPU 211 deletes all the registered URLs including the same host URL in the [Registered URL] column of the registered URL DB (see FIG. 6) from the registered URL DB (S1317). Then, the CPU 211 erases the host URL extracted in step S1201 from the unconfirmed host DB (see FIG. 8) (S1319).

  On the other hand, when the CPU 211 determines that the host URL can be converted into an IP address, the value in the [Investigation time] column of the unconfirmed host DB (see FIG. 8) is set to the current time, and the value in the [Number of investigations] column is set to the current value. Each value is updated to a value obtained by adding “1” to the value (S1313). Then, the CPU 211 determines whether or not the value in the [Number of investigations] column of the unidentified host DB exceeds the predetermined number (S1315).

  If the CPU 211 determines that the predetermined number of times has been exceeded, the CPU 211 deletes all registered URLs including the same host URL in the [Registered URL] column of the registered URL DB (see FIG. 6) from the registered URL DB (S1307). Then, the CPU 211 deletes the host URL extracted in step S1201 from the unconfirmed host DB (see FIG. 8) (S1308).

[Other Examples]
In the first embodiment described above, when the user selects one URL among the URLs included in the search result of the home page performed with respect to the search server 23, the URL management apparatus 21 checks the URL existence etc. It was decided to execute. However, the URL management device 21 may execute a URL presence check or the like for all URLs included in the search result of the home page performed by the user with respect to the search server 23. In this case, the URL management device 21 may acquire a search result from the search server 23 and perform a URL presence check on the acquired URL. Further, the URL existence investigation or the like may be executed only for the update flag addition URL among the URLs included in the search result. As described above, by executing the URL existence investigation or the like before transmitting the search result to the user, the search result reflecting the investigation result can be provided to the user who has performed the search.

  Further, in the above-described first embodiment, a URL presence check or the like is performed on the URL included in the search result of the home page performed by the search server 23. However, the target for executing the URL presence check or the like is not limited to the search result as long as the URL is included. For example, it may be a collection of links on a homepage. When the URL management device 21 acquires connection request information for requesting connection to a homepage corresponding to the URL included in the link collection, a URL presence check or the like may be executed.

  Furthermore, in the first embodiment, the registered URL DB is stored in the hard disk 913 of the URL DB server 29. However, the registered URL DB may be stored in the hard disk 113 of the URL management device 21.

Furthermore, in the above-described first embodiment, the search server 23 performs a search for the registered URL DB. However, another URL database to be searched by the search server 23 is prepared separately. You may make it have only the function as a database which manages URL database.

It is a functional block diagram of URL information management system in the present invention. It is the figure which showed the hardware constitutions of the URL information management system in FIG. It is the figure which showed the hardware constitutions of the URL information management apparatus 21 in FIG. It is the figure which showed the hardware constitutions of the search server 23 in FIG. It is the figure which showed the hardware constitutions of the URLDB server 29 in FIG. It is the figure which showed an example of registration URLDB. It is the figure which showed an example of the screen control table. It is the figure which showed an example. It is the figure which showed an example. 5 is a flowchart showing an outline of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. 5 is a flowchart showing details of the operation of the URL information management device 21. It is a figure for demonstrating a prior art. It is a figure for demonstrating a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... URL information management system 21 ... URL information management apparatus 23 ... Search server 29 ... URLDB server

Claims (29)

In a URL management system having a search device for searching a URL of a home page and a URL management device for managing a URL stored in a URL storage means for storing the URL of the home page,
The search device includes:
Search request information acquisition means for acquiring search request information,
When it is determined that the search request information has been acquired, search means for searching for a URL corresponding to the search information;
Search result information generating means for generating search result information based on the URL searched by the search means;
Search result information providing means for providing the search result information;
Have
The URL management device
Connection request information acquisition means for acquiring connection request information for requesting connection to a homepage of a URL included in the search result information;
If it is determined that the connection request information has been acquired, URL search execution means for executing a URL presence check for checking whether a URL homepage corresponding to the connection request information exists in the URL;
URL management means for storing in the URL storage means in association with the URL search result and the URL;
Having
URL information management system characterized by the above. Connection request information acquisition means for acquiring connection request information for requesting connection to a homepage corresponding to the URL included in the search result information that is a search result of the URL performed for the search device;
If it is determined that the connection request information has been acquired, URL search execution means for executing a URL presence check for checking whether a URL homepage corresponding to the connection request information exists in the URL;
URL management means for storing in the URL storage means in association with the URL search result and the URL;
URL management device having Search result information acquisition means for acquiring search result information that is a search result of a URL performed for the search device;
If it is determined that the search result information has been acquired, URL search execution means for executing a URL presence check for checking whether or not the URL home page of the URL included in the search result information exists in the URL;
URL management means for storing in the URL storage means in association with the URL search result and the URL;
URL management device having Connection request information acquisition means for acquiring connection request information for requesting connection to a homepage corresponding to the URL;
If it is determined that the connection request information has been acquired, URL search execution means for executing a URL presence check for checking whether a URL homepage corresponding to the connection request information exists in the URL;
URL management means for storing in the URL storage means in association with the URL search result and the URL;
URL management device having In either the URL management system or the URL management device according to claims 1 to 4,
The URL survey execution means further includes:
If it is determined that the home page of the URL corresponding to the connection request information or the search result information does not exist in the URL, whether the home page exists in a URL different from the URL corresponding to the connection request information or the search result information Investigate whether there is a different URL
The URL management means further includes:
Associating the different URL presence investigation result with the URL corresponding to the connection request information or the search result information and storing it in the URL storage means;
It is characterized by. In either the URL management system or the URL management device according to claim 5,
The URL survey execution means further includes:
If it is determined that the homepage does not exist in a URL different from the URL corresponding to the connection request information or the search result information, a higher-level computer presence check is performed to check whether a computer having a higher URL with respect to the different URL exists. Run,
The URL management means further includes:
Associating and storing the higher-level computer presence investigation result and the URL corresponding to the connection request information or the search result information in the URL storage means;
It is characterized by. In either the URL management system or the URL management device according to claim 6,
The URL survey execution means further includes:
If it is determined that there is no computer having a higher URL with respect to the different URL, a specific information search is performed to check whether specific information for specifying the higher URL can be obtained from the higher URL.
The URL management means further includes:
Storing the specific information investigation result and the connection request information or the URL corresponding to the search result information in association with each other in the URL storage unit;
It is characterized by. In either the URL management system or the URL management device according to claim 7,
The URL management means further includes:
If it is determined that the specific information specifying the higher URL cannot be obtained from the higher URL, deleting the URL including the higher URL from the URL information storage unit;
It is characterized by. In either the URL management system or the URL management device according to claim 8,
The URL management means further includes:
If it is determined that the specific information for identifying the high-order URL can be obtained from the high-order URL, the specific information investigation result and the high-order URL are associated and stored in the high-order URL information storage unit.
It is characterized by. In either the URL management system or the URL management device according to claim 1,
The URL management means further includes:
The URL information investigation, the different URL existence investigation, the host computer existence investigation, or the time when the specific information investigation was performed and the URL included in the connection request information are associated with each other and stored in the URL information storage device,
Determining whether or not a predetermined time has elapsed from the time of performing the URL presence survey, the different URL presence survey, the higher-level computer presence survey, or the specific information survey in the URL information storage device; If it is determined that a predetermined time has elapsed from the time of performing the different URL existence investigation, the upper computer existence investigation, or the specific information investigation, for the corresponding URL, the URL existence investigation, the different URL existence investigation, the upper computer Performing presence surveys or specific information surveys;
It is characterized by. In either the URL management system or the URL management device according to claim 1,
The URL management means further includes:
The number of investigations related to the URL existence investigation, the different URL existence investigation, the upper computer existence investigation, or the specific information investigation and the URL included in the connection request information are associated with each other and stored in the URL information storage device,
It is determined whether or not the number of investigations regarding the URL existence investigation, the different URL existence investigation, the upper computer existence investigation, or the specific information investigation in the URL information storage device is greater than or equal to a predetermined number of times, and the number of investigations Deletes the URL corresponding to the number of investigations from the URL information storage device.
It is characterized by. In either the URL management system or the URL management device according to claim 11,
The URL management means further includes:
Determining a timing for conducting an investigation as to whether or not the number of investigations in the URL information storage device is greater than or equal to a predetermined number or greater than a predetermined number based on the number of investigations;
It is characterized by. In either the URL management system or the URL management device according to claims 1 to 12,
The URL management means further includes:
A result of the URL existence investigation, a different URL existence investigation, a higher-level computer existence investigation, or a specific information investigation, and display availability information indicating whether or not the URL stored in the URL information storage means is included in the search result information. Storing the URL information in association with the URL information storage means;
It is characterized by. In either the URL management system or URL management device according to claims 1-13,
The URL management means further includes:
Display order information indicating the order when displaying the URL presence survey, the difference URL presence survey, the higher-level computer presence survey, or the specific information survey result and the URL stored in the URL information storage means as search result information; In association with the URL information storage means,
It is characterized by. A URL management system for managing URLs stored in URL storage means using a search device for searching URLs of home pages and a URL management apparatus for managing URLs stored in URL storage means for storing URLs of home pages In the program
For the search device,
Obtaining search request information;
Determining that the search request information has been acquired, searching for a URL corresponding to the search information;
Generating search result information based on the URL searched by the search means;
Providing the search result information;
And execute
The URL management device
Obtaining connection request information for requesting connection to a homepage of a URL included in the search result information;
If it is determined that the connection request information has been acquired, a URL presence check is performed to check whether a homepage of a URL corresponding to the connection request information exists in the URL;
Storing in the URL storage means in association with the URL search result and the URL;
Running
URL management system program characterized by the above. In the URL management program for managing the URL stored in the URL storage means,
The URL management program
On the computer,
Obtaining connection request information for requesting connection to a homepage corresponding to the URL included in the search result information that is a search result of the URL performed for the search device;
If it is determined that the connection request information has been acquired, a URL presence check is performed to check whether a homepage of a URL corresponding to the connection request information exists in the URL;
Storing in the URL storage means in association with the URL search result and the URL;
URL management system program for executing In the URL management program for managing the URL stored in the URL storage means,
The URL management program
On the computer,
A step of acquiring search result information that is a search result of a URL performed for the search device;
If it is determined that the search result information has been acquired, a URL presence check is performed to check whether the URL homepage of the URL included in the search result information exists in the URL;
Storing in the URL storage means in association with the URL search result and the URL;
URL management system program for executing In the URL management program for managing the URL stored in the URL storage means,
The URL management program
On the computer,
Obtaining connection request information for requesting connection to a homepage corresponding to the URL;
If it is determined that the connection request information has been acquired, a URL presence check is performed to check whether a homepage of a URL corresponding to the connection request information exists in the URL;
Storing in the URL storage means in association with the URL search result and the URL;
URL management program for executing Either of the URL management system program or the URL management program according to claim 15-18,
The URL management system program or URL management program is:
Against the computer,
If it is determined that the home page of the URL corresponding to the connection request information or the search result information does not exist in the URL, whether the home page exists in a URL different from the URL corresponding to the connection request information or the search result information Executing a different URL existence investigation to investigate whether or not
Associating the URL search result with the URL corresponding to the connection request information or the search result information and storing it in the URL storage means;
Something to run. In either the URL management system program or the URL management program according to claim 19,
The URL management system program or URL management program is:
Against the computer,
If it is determined that the homepage does not exist in a URL different from the URL corresponding to the connection request information or the search result information, a higher-level computer presence check is performed to check whether a computer having a higher URL with respect to the different URL exists. The steps to be performed,
Associating the higher-level computer presence investigation result with the URL corresponding to the connection request information or the search result information and storing it in the URL storage means;
Something to run. In either the URL management system program or the URL management program according to claim 20,
The URL management system program or URL management program is:
Against the computer,
When determining that there is no computer having a higher URL with respect to the different URL, executing a specific information investigation for investigating whether or not specific information for specifying the higher URL can be obtained from the higher URL;
The URL management means further includes:
Associating the specific information investigation result with the URL corresponding to the connection request information or the search result information and storing it in the URL storage means;
Something to run. In either the URL management system program or the URL management program according to claim 21,
The URL management system program or URL management program is:
Against the computer,
If it is determined that the specific information for specifying the higher URL cannot be obtained from the higher URL, the URL including the higher URL is deleted from the URL information storage unit;
Something to run. In either the URL management system program or the URL management program according to claim 22,
The URL management system program or URL management program is:
Against the computer,
If it is determined that the specific information for identifying the high-order URL can be obtained from the high-order URL, the specific information investigation result and the high-order URL are associated with each other and stored in the high-order URL information storage unit;
Something to run. Either of the URL management system program or the URL management program according to claims 15 to 23,
The URL management system program or URL management program is:
Against the computer,
A step of associating and storing in the URL information storage device the time when the URL existence investigation, the different URL existence investigation, the host computer existence investigation, or the specific information investigation is performed and the URL included in the connection request information;
Determining whether or not a predetermined time has elapsed from the time of performing the URL presence survey, the different URL presence survey, the higher-level computer presence survey, or the specific information survey in the URL information storage device; If it is determined that a predetermined time has elapsed from the time of performing the different URL existence investigation, the upper computer existence investigation, or the specific information investigation, for the corresponding URL, the URL existence investigation, the different URL existence investigation, the upper computer A step of executing a presence survey or a specific information survey,
Something to run. Either of the URL management system program or the URL management program according to claims 15 to 24,
The URL management system program or URL management program is:
Against the computer,
A step of associating the number of investigations related to the URL existence investigation, the different URL existence investigation, the higher-level computer existence investigation, or the specific information investigation with the URL included in the connection request information, and storing it in the URL information storage device;
It is determined whether or not the number of investigations regarding the URL existence investigation, the different URL existence investigation, the upper computer existence investigation, or the specific information investigation in the URL information storage device is greater than or equal to a predetermined number of times, and the number of investigations The URL corresponding to the number of investigations is deleted from the URL information storage device,
Something to run. In either the URL management system program or the URL management program according to claim 25,
The URL management system program or URL management program is:
Against the computer,
A step of determining, based on the number of investigations, a timing for investigating whether or not the number of investigations in the URL information storage device is greater than or equal to a predetermined number of times or greater than a predetermined number of times;
Something to run. Either of the URL management system program or the URL management program according to claims 15 to 26,
The URL management system program or URL management program is:
Against the computer,
A result of the URL existence investigation, a different URL existence investigation, a higher-level computer existence investigation, or a specific information investigation, and display availability information indicating whether or not the URL stored in the URL information storage means is included in the search result information. Associating and storing in the URL information storage means;
Something to run. Either of the URL management system program or the URL management program according to claims 15 to 27,
The URL management system program or URL management program is:
Against the computer,
Display order information indicating the order when displaying the URL presence survey, the difference URL presence survey, the higher-level computer presence survey, or the specific information survey result and the URL stored in the URL information storage means as search result information; Storing the URL information in the URL information storage means,
Something to run. In a URL management method for managing URLs stored in URL storage means using a computer having URL storage means,
The computer acquires connection request information for requesting connection to a homepage corresponding to the URL included in the search result information that is a search result of the URL performed for the search device,
If the computer determines that the connection request information has been acquired, it performs a URL presence check to check whether a URL homepage corresponding to the connection request information exists in the URL;
If the computer determines that the URL corresponding to the connection request information or the search result information does not exist in the URL, the home page exists in a URL different from the URL corresponding to the connection request information or the search result information. Execute a different URL existence investigation to investigate whether or not
The computer associates the URL investigation result with the URL and stores it in the URL storage means. The computer associates the difference URL existence investigation result with the URL corresponding to the connection request information or the search result information. Storing in the URL storage means,
URL management method characterized by this.

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