JP4852014B2 - Communication system, proxy server, control method thereof, and control program thereof - Google Patents

Description

  The present invention relates to a communication system, a proxy server, a control method thereof, and a control program thereof.

  Because the display screen of a mobile phone is relatively narrow, web pages for mobile phones are often vertically long. In addition, when scrolling a web page displayed on a display screen in a mobile phone, the scroll speed is relatively slow. For this reason, buttons are often provided with the same link destinations at the top and bottom of the web page. For example, there may be buttons provided with characters such as “return to top”, “shopping card”, and “logout” at the top and bottom of the web page. The same linked web page is requested whether the button provided at the top of the web page or the button provided at the bottom of the web page is clicked. A web page in response to the request is displayed on the display screen of the mobile phone.

  However, if there is a button with the same link on the top and bottom of the web page, when one of the buttons is clicked, it may not be clear which button was clicked. is there.

In addition, since there is a limitation on the length of URL that can be handled by a mobile phone, there is a technology that enables access to a web page regardless of the limitation (Patent Document 1).
Japanese Patent Laid-Open No. 2003-141002

  This invention makes it possible to know which button has been clicked when the button is clicked when a plurality of buttons are provided on the web page and the link destinations of the buttons are the same. For the purpose.

  The present invention relates to a communication system including a proxy server and a web server.

  The proxy server is request data transmitted from the client terminal device in response to clicking of one clickable region of the plurality of clickable regions included in the web page in the client terminal device, and includes a URL First request data receiving means for receiving request data for requesting a web page specified by the URL of the web page requested by the request data received by the first request data receiving means In response to determining that the URL of the requested web page has not been converted in the proxy server by the determination unit that determines whether the proxy server has not converted the URL, By 1 receiving means In response to determining that the URL of the requested web page has been converted by the proxy server by the first transmitting means for transmitting the received request data to the web server and the determining means. , URL reverse conversion means for returning the converted URL to the URL before conversion, and request data for requesting the web page specified by the URL returned by the URL reverse conversion means is transmitted to the web server. Second request data transmission means is provided.

  The web server includes second request data receiving means for receiving request data transmitted from the first request data transmitting means or the second request data transmitting means of the proxy server; and First web page data transmitting means for transmitting the data of the web page requested by the request data received by the second request data receiving means to the proxy server is provided.

  The proxy server is further linked to each of a plurality of clickable areas included in the web page represented by the web page data transmitted from the first web page data transmission means of the web server. The link destination URL indicating the link destination of the web page is converted by the link destination URL converting means for converting the converted link destination so that the link destination after the conversion is different in each of the plurality of clickable areas, and the link destination URL converting means. URL of the web page requested by the second web page data sending means for sending the web page data representing the web page including the linked URL to the client terminal device, and the judging means Is determined to have been converted by the proxy server Accordingly, the link destination URL before being converted by the link destination URL converting means and the request data received by the first request data receiving means are clicked to transmit from the client terminal device. Storage control means for controlling the storage device to store the position in the page of the clickable area in the page and the link source URL that is the URL of the web page including the one clickable area in association with each other. I have.

  According to the present invention, a web page including a plurality of clickable areas is displayed on the display screen of the client terminal device. When one clickable area of the plurality of clickable areas is clicked, request data for requesting a web page specified by a URL (Uniform Resource Locator) is transmitted from the client terminal device to the proxy server. When the request data transmitted from the client terminal device is received by the proxy server, it is determined whether the URL of the web page requested by the received request data has been converted by the proxy server.

  When request data is first transmitted from the client terminal device to the proxy server, the URL of the web page requested by the request data is not converted in the proxy server. Then, the request data received at the proxy server is transmitted to the web server.

  When the request data transmitted from the proxy server is received by the web server, the web page data requested by the request data is transmitted from the web server to the proxy server.

  When the web page data transmitted from the web server is received at the proxy server, it is linked to each of a plurality of clickable areas included in the web page represented by the received web page data. The link destination URL indicating the link destination of the web page is converted so that the converted link destination is different in each of the plurality of clickable areas. Web page data representing a web page including the converted URL is transmitted from the proxy server to the client terminal device.

  When the web page data transmitted from the proxy server is received at the client terminal device, one clickable of a plurality of clickable areas included in the web page represented by the received web page data. The area is clicked. Then, web page request data is transmitted from the client terminal device to the proxy server.

  When the request data transmitted from the client terminal device is received by the proxy server, it is determined whether the URL of the web page requested by the received request data has been converted by the proxy server. If the URL of the requested web page is converted by the proxy server, the converted URL is returned to the URL before conversion. Request data requesting web page data specified by the returned URL is transmitted from the proxy server to the web server.

  When the request data transmitted from the proxy server is received by the web server, as described above, the web page data according to the request data is transmitted from the web server to the proxy server.

  If the request data transmitted from the client terminal device and received by the proxy server is converted by the proxy server, the link destination URL before conversion and the client terminal device to the proxy server are converted. The in-page position in the web page of the clickable area clicked to transmit the request data and the link source URL of the web page including the clickable clickable area are stored in association with each other. Since the link destination URL before conversion indicates the URL of the clicked linkable web page in the clickable area, the link destination URL before conversion and the clickable clickable area web page A button where the same link destination is pasted in the web page by associating and storing the position in the page and the link source URL of the web page containing the clickable clicked area. Is included, even if any button is clicked, any button is clicked, and the link destination URL (( You can see if you have accessed the web page (of the linked URL).

  The present invention also provides a proxy server constituting the communication system. That is, it is a proxy server that constitutes a communication system including a proxy server and a web server, and one clickable area of a plurality of clickable areas included in a web page is clicked in the client terminal device. Accordingly, determination means for determining whether the URL of the web page requested from the client terminal device has not been converted by the proxy server, and the URL of the web page requested by the determination means is determined by the proxy server. The first request means for requesting the web server for a web page request from the client terminal device when the web page requested by the judgment means is determined in response to the fact that it has not been converted in step Is the above URL The URL reverse conversion means for returning the converted URL to the URL before conversion in response to the determination that the URL has been converted, and the web specified by the URL returned by the URL reverse conversion means. In response to a request from the second request means, the first request means, or the second request means for requesting a request for a page to the web server, a web page sent from the web server. The link destination URL indicating the link destination of the web page linked to each of the plurality of clickable areas included in the web page represented by the data, and the converted link destination in each of the plurality of clickable areas. Link destination URL converting means for converting differently, the link destination URL converting means The web page data transmission means for transmitting the web page data representing the web page including the link destination URL converted by the above-mentioned client terminal device, and the URL of the requested web page by the determination means When it is determined that the proxy server has converted the URL before being converted by the link destination URL conversion means and the one of the client terminal device clicked to request a web page. A memory for controlling the storage device to store the position in the page in the web page of the clickable area and the link source URL that is the URL of the web page including the web page of the one clickable area in association with each other. Control means are provided.

  The present invention also provides an operation control method for the proxy server. In other words, this method is an operation control method of a proxy server constituting a communication system including a proxy server and a web server, and the determination means includes a plurality of clickable areas included in a web page in the client terminal device. The URL of the web page requested from the client terminal device in response to clicking on one clickable area is determined by the proxy server, and the first request means When the determination means determines that the URL of the requested web page has not been converted by the proxy server, a request for the web page from the client terminal device is sent to the web server. Then, the URL reverse conversion means When the URL of the requested web page is determined to have been converted by the proxy server, the converted URL is returned to the URL before conversion, and the second request means A request for the web page specified by the URL returned by the URL reverse conversion means is requested to the web server, and the link destination URL conversion means requests from the first request means or the second request means. In response to, a link destination indicating the link destination of the web page linked to each of the plurality of clickable areas included in the web page represented by the web page data transmitted from the web server The URL is different in each of the multiple clickable areas. The web page data transmission means transmits the web page data representing the web page including the link destination URL converted by the link destination conversion means to the client terminal device for storage control. When the means determines that the URL of the requested web page has been converted in the proxy server by the determining means, the link destination URL before being converted by the link destination URL converting means The link source URL which is the URL in the page in the web page of the one clickable area clicked to request a web page from the client terminal device and the URL of the web page including the clickable area at the position To control the storage device so that is there.

  Furthermore, the present invention also provides a program for controlling the proxy server. A recording medium storing the program may be provided.

  FIG. 1 shows the overall configuration of a communication system according to an embodiment of the present invention.

  The communication system 25 according to this embodiment includes a proxy server (proxy server) 10 and a web server 20. The communication system 25 can communicate with a client terminal device 1 (not limited to a mobile phone) 1 typified by a mobile phone.

  A client program 2 that controls operations described later is installed in the client terminal device 1. The client terminal device 1 includes a CPU, a display device for displaying a web page, a communication device for communicating with the proxy server 10, a keypad for giving various commands, a memory, etc. (Not shown).

  The proxy server 10 is installed with a first server program 11 that controls operations described later. This server program 11 is stored in a CD-ROM (compact disk-read only memory), and the server program 11 is read by a CD-ROM drive (not shown) and sent to the proxy server 10. Installed. Of course, the server program 11 transmitted from another server or the like may be received and installed in the proxy server 10. The proxy server 10 also includes a conversion / inverse conversion table, which will be described later, and a hard disk 13 for storing other data.

  The web server 20 is installed with a second server program 21 that controls operations described later. The web server 20 also has a built-in hard disk 22. The hard disk 22 stores web page data displayed on the display device of the client terminal device 1.

  Both the proxy server 10 and the web server 20 include a CPU, a display device, a communication device, a memory, a hard disk drive, a keyboard, and the like.

  When displaying the web page represented by the desired web page data stored in the web server 20 on the display device of the client terminal device 1, the client terminal device 1 and the proxy server 10 are connected, and The proxy server 10 and the web server 20 are connected.

  FIG. 2 is an example of a web page having a URL of buy.html.

  The web page 30 with the URL buy.html displays the first clickable area 31 with the text “return to top” displayed at the top and the text “buy” at the center. A second clickable area 32, and a third clickable area 33 in which a character string “return to top” is displayed at the bottom. In the first clickable area 31 and the third clickable area 33, a link to which a web page having the URL of Index.html is linked is established. Since the link destinations extended to the first clickable area 31 and the third clickable area 33 are the same, Index. Is clicked regardless of whether the first clickable area 31 is clicked or the third clickable area 33 is clicked. Request data is sent requesting the same web page with the html URL. In the second clickable area 32, a link is linked to which a web page having the URL of pagea.html is linked.

  FIG. 3 is an example of a web page having a URL of Index.html that is a link destination of the first clickable area 31 and the third clickable area 33 in FIG.

  The web page 40 having the URL of Index.html has a first clickable area 41 in which the character string “buy” is displayed and a second clickable area in which the character string “sell” is displayed. 42 is provided. In the first clickable area 41, a link is made to a web page having the URL of buy.html. Therefore, when the first clickable area 41 is clicked, the web page 40 shown in FIG. 2 is requested. The second clickable area 42 is linked to a web page having the URL of sell.html.

  In this embodiment, when the web page 30 shown in FIG. 2 is requested by the client terminal device 1, the web page 50 shown in FIG. 4 is sent to the client terminal device 1 instead of the web page 40 shown in FIG. 3. Is displayed.

  FIG. 4 is an example of a web page 50 having a URL of buy.html.

  Similar to the web page 30 shown in FIG. 2, the web page 50 is formed with a first clickable area 51 at the top, a second clickable area 52 at the center, and a third clickable area 53 at the bottom. ing. The first clickable area 51 is linked to the web page with the URL of xa.html, and the second clickable area 52 is linked to the web page with the URL of xb.html. The third clickable area 53 is linked to the URL of xc.html. Unlike the first clickable region 31 and the third clickable region 33 formed on the web page 30 shown in FIG. 2, the first clickable region 51 and the first clickable region 51 formed on the web page 50 shown in FIG. The link destinations attached to the three clickable areas 53 are different.

  Referring to FIG. 1, in the embodiment of the present invention, when requesting a web page with the URL name buy.html shown in FIG. 2 from client terminal device 1 (this request is formed in the web page). The client terminal device 1 sends a request “GET buy.html” to the proxy server 10 (which is generated when one clickable area of the plurality of clickable areas is clicked). If the URL (buy.html) included in the request is not converted in the proxy server 10, the request “GET buy.html” is transmitted from the proxy server 10 to the web server 20. In response to the request, web page data (buy.html file 1) for displaying a web page having the URL name buy.html shown in FIG. 2 is transmitted from the web server 20 to the proxy server 10. . In the proxy server 10, the URL of the link destination extended in the clickable area included in the web page so that the data represents the web page 50 shown in FIG. 4 from the web page 30 shown in FIG. Converted. That is, the second clickable shown in FIG. 2 changes from Index.html that is linked to the first clickable area 31 of FIG. 2 to xa.html that is linked to the first clickable area 51 of FIG. From pagea.html stretched in the area 32 to xb.html stretched in the clickable area 52 of FIG. 4, and from Index.html stretched in the third clickable area 33 shown in FIG. Each is converted to xc.html stretched on the third clickable area 53. As described above, the link destination URLs linked to each of the plurality of clickable areas 31, 32, and 33 included in the web page 30 shown in FIG. 2 are converted to the link destination URLs as shown in FIG. The URLs of the link destinations are converted so as to be different in the plurality of clickable areas 51, 52, and 53, respectively. Web page data (buy.html file 2) indicating the web page 50 into which the link destination URL has been converted is transmitted from the proxy server 10 to the client terminal device 1.

  When the web page 50 shown in FIG. 4 is displayed on the display device of the client terminal device 1, any of the clickable areas 51 to 53 displayed on the web page 50 by the user of the client terminal device 1 is clickable. The area is clicked. When the first clickable area 51 is clicked by the user, the request “GET xa.html” of the web page of xa.html which is the link destination of the first clickable area 51 is sent from the client terminal device 1 to the proxy server 10. Sent to.

  When the proxy server 10 receives a request “GET xa.html” for a web page having a URL of xa.html, the URL (xa.html) of the requested web page is converted by the proxy server 10 Therefore, the original URL (Index.html) before conversion is restored. A request “GET Index.html” of the web page having the returned original URL (Index.html) is transmitted from the proxy server 10 to the web server 20.

  When the web server 20 receives the request “GET Index.html” of the web page having the URL of Index.html transmitted from the proxy server 10, the index is returned to Index as shown in FIG. 3 in response to the request. Web page data (Index.html file) representing the web page 40 having the URL of .html is transmitted to the proxy server 10.

  The proxy server 10 performs URL conversion processing so that the web page 60 shown in FIG. 5 is displayed from the web page 40 shown in FIG.

  Referring to FIG. 5, the first clickable area 61 in which the text “buy” is displayed and “sell” are displayed on the web page 60 having URL of Index.html as in FIG. 3. The second clickable area 62 in which the character string “” is displayed is formed. The first clickable area 61 is not linked to the web page having the URL of buy.html like the first clickable area 41 shown in FIG. 3, but is a web having the URL of x1.html.・ The page has a link. The second clickable area 62 is not linked to the URL of sell.html like the second clickable area 42 of FIG. 3, but is linked to the web page having the URL of x2.html. It has been.

  The proxy server 10 converts the link destination URL included in the web page so that the web page 60 shown in FIG. 5 is displayed from the web page 40 shown in FIG. The web page data (Index.html file) in which the link destination URL is converted is transmitted from the proxy server 10 to the client terminal device 1, whereby the display screen of the display device of the client terminal device 1 is shown in FIG. A web page 60 is displayed. Thereafter, as described above, the URL of the web page requested from the client terminal device 1 is reversely converted in the proxy server 10, and a request for the web page having the URL before conversion is given to the web server 20. As a result, the web page data is transmitted from the web server 20 to the client terminal device 1 via the proxy server 10.

  FIG. 6 is an example of the conversion / inverse conversion table.

  The conversion / inverse conversion table is stored in the hard disk 13 of the proxy server 10.

  In the conversion / reverse conversion table, the link destination URL after conversion, the link destination URL before conversion, the link source URL, the client identification data, the position in the page, and the access time are recorded as described above. As shown in FIG. 2 to FIG. 5, the link source URL is pasted on the web pages 30 to 60 by the clickable areas 31, 32, 33, 41, 42, 51, 52, 53, 61, 62. The URLs of those web pages 30, 40, 50, 60. In the client identification data, the URL of the web page requested from the client terminal device 1 is not converted in the proxy server, that is, the first web page request is made from the client terminal device 1 to the proxy server 10. Are generated to identify the client terminal device 1. The in-page position is data for identifying a plurality of clickable areas when a plurality of clickable areas are formed on a web page. Numbers are defined in order from the top according to the position displayed on the web page. The access time of the clickable area in the web page is recorded as the access to the web page having the reversely converted URL when the URL is reversely converted.

  The conversion / inverse conversion table is an access record of the client terminal device. The link destination URL before conversion is the URL of the web page moved from the web page of the link source URL. Further, as described above, the position in the page indicates the clickable area formed in the web page of the link source URL, and the web location specified by the link destination URL before conversion from the web page of the link source URL. When moving to a page, it indicates which clickable area out of a plurality of clickable areas formed on the web page of the link source URL is clicked.

  For example, in the first line, user A has moved from a web page having the URL of buy.html (link source URL) to a web page having the URL of Index.html (link destination URL before conversion). I understand. Moreover, since the position in the page is “1”, the user A clicks the first clickable area that appears first in the web page, and the position in the page of buy.html is specified by “1”. I understand that. By referring to the position in the page, even if a clickable area having a common link destination is formed on the web page, it can be determined which clickable area has been clicked. For example, in the n-th line, it can be seen that the user B has moved from the web page of the URL of buy.html (link source URL) to the web page of Index.html. Since the position in the page is “3”, the user B clicks the third clickable area that appears third in the web page, where the position in the page of buy.html is specified by “3”. I understand that.

  In this way, when a plurality of clickable areas are provided on the web page, it can be seen which clickable area has been clicked. For example, if a clickable area provided at the bottom of a web page is clicked, all the web pages are considered to have been browsed. On the other hand, when the clickable area provided at the top of the web page is clicked, it is understood that the web page has moved to another page without being browsed. For this reason, it is considered that the user is not interested in the web page itself. Therefore, it is wrong that the user is guided to the web page, and the user should be guided to another web page. Will be able to.

  7 to 9 are flowcharts showing processing procedures among the client terminal device 1, the proxy server 10, and the web server 20. 7 shows the processing procedure of the client terminal device 1, FIG. 8 shows the processing procedure of the proxy server 10, and FIG. 9 shows the processing procedure of the web server.

  First, a click of a clickable area included in a web page is specified from the client terminal device 1 to the proxy server 10, whereby a URL is specified and a web page request is transmitted (YES in step 71 in FIG. 7). FIG. 7 step 72).

  When the request transmitted from the client terminal device 1 is received by the proxy server 10 (step 81 in FIG. 8, step 82 in FIG. 8), the URL of the web page specified by the received request is converted in the proxy server 10. Is determined (step 83 in FIG. 8).

  When the web page request is first transmitted to the proxy server 10, the URL of the web page specified by the request is not converted in the proxy server 10 (NO in step 83 in FIG. 8). Identification data unique to the client terminal device 1 that transmitted the request is generated (step 84 in FIG. 8). The received request is transmitted from the proxy server 10 to the web server 20 (step 86 in FIG. 8).

  The request transmitted from the proxy server 10 is received by the web server 20 (step 101 in FIG. 9). Then, data representing the web page of the URL specified by the request is transmitted from the web server 20 to the proxy server 10 (step 102 in FIG. 9).

  When the web page data transmitted from the web server 20 is received by the proxy server 10 (step 87 in FIG. 8), the clickable included in the web page represented by the received web page data. The link destination URL attached to the area is converted (step 88 in FIG. 8). URL after conversion, URL before conversion, URL of link source (URL of the web page), client identification data, position in page (clickable area formed in the web page of link source URL, clicked Thus, the clickable area in the page where the request is generated and the identification data are recorded in the conversion / inverse conversion table (step 89 in FIG. 8). The web page data in which the link destination URL is converted is transmitted from the proxy server 10 to the client terminal device 1 (step 90 in FIG. 8).

  When the client terminal device 1 receives the web page data transmitted from the proxy server 10, one clickable area of the plurality of clickable areas is displayed on the web page represented by the received web page data. Is clicked. Then, a request for the web page of the link destination URL stretched in the one clickable area is transmitted from the client terminal device 1 to the proxy server 10 (YES in step 71 in FIG. 7, step 72).

  When the request transmitted from the client terminal device 1 is received by the proxy server 10 (step 81, step 82 in FIG. 8), it is determined whether the URL specified by the request is a converted URL (step 83). . In this case, since the URL is converted (YES in step 83 in FIG. 8), the URL is converted back to the URL before conversion with reference to the conversion / inverse conversion table (step 85 in FIG. 8). The access time is recorded in the conversion / inverse conversion table (step 85 in FIG. 8). The URL of the web page specified by the reversely converted URL is sent from the proxy server 10 to the web server 20 (step 86 in FIG. 8), and the URL reversely converted from the web server 20 to the proxy server 10 Data representing the web page is transmitted (step 72 in FIG. 7). In the proxy server 10, the link destination URL embedded in the web page is converted (step 88 in FIG. 8). The converted link destination URL, the position in the page, etc. are recorded in the conversion / inverse conversion table (step 89 in FIG. 8), and the web page data in which the link destination URL is converted is transmitted from the proxy server 10 to the client terminal device 1. (Step 90 in FIG. 8). Since the position in the page is the order in which the buttons appear in the web page, the order in which the link URLs of the buttons appear in the web page data representing the web page can be recorded in the conversion / inverse conversion table. Subsequent processing is repeated in the same manner when there is a request from the client terminal device 1 to the proxy server 10.

1 shows the entire communication system. It is an example of the web page in which the link destination URL is embedded. It is an example of the web page in which the link destination URL is embedded. It is an example of the web page in which the converted link destination URL is embedded. It is an example of the web page in which the converted link destination URL is embedded. It is an example of a conversion / inverse conversion table. It is a flowchart which shows the process sequence of a client terminal device. It is a flowchart which shows the process sequence of a proxy server. It is a flowchart which shows the process sequence of a web server.

Explanation of symbols

1 Client terminal device
10 Proxy server
20 Web server
30, 40 Web page before link URL conversion
50, 60 Web page after link destination URL conversion

Claims (4)

In a communication system comprising a proxy server and a web server,
The proxy server is
Request data transmitted from the client terminal device in response to a click on one of the clickable regions included in the web page in the client terminal device, the web specified by the URL First request data receiving means for receiving request data for requesting a page;
Determining means for determining whether the URL of the web page requested by the request data received by the first request data receiving means has not been converted in the proxy server;
When the determination means determines that the URL of the requested web page has not been converted by the proxy server, the request data received by the first reception means is transmitted to the web server. First transmitting means to
URL reverse conversion means for returning the converted URL to the URL before conversion in response to the determination that the URL of the requested web page has been converted in the proxy server by the determination means; Second request data transmission means for transmitting request data for requesting a web page specified by the URL returned by the URL reverse conversion means to the web server;
The web server
Second request data receiving means for receiving request data transmitted from the first request data transmitting means or the second request data transmitting means of the proxy server; and the second request data. First web page data transmission means for transmitting data of the web page requested by the request data received by the reception means to the proxy server;
The proxy server is
A web page linked to each of a plurality of clickable areas included in the web page represented by the web page data transmitted from the first web page data transmission means of the web server A link destination URL converting means for converting the link destination URL indicating the link destination of the link so that the converted link destination is different in each of the plurality of clickable areas;
By the second web page data transmitting means for transmitting the web page data representing the web page including the link destination URL converted by the link destination URL converting means to the client terminal device, and by the determining means, When it is determined that the URL of the requested web page has been converted by the proxy server, the link destination URL and the first request data received before being converted by the link destination URL conversion means In the page position of the one clickable area web page clicked to transmit the request data received by the client terminal device from the client terminal device and the URL of the web page including the one clickable area A link source URL is stored in association with each other. Storage control means for controlling the storage device,
A communication system comprising: A proxy server constituting a communication system including a proxy server and a web server,
The URL of the web page requested from the client terminal device is converted in the proxy server in response to clicking on one of the clickable regions included in the web page in the client terminal device. A determination means for determining whether or not there is,
When the determination means determines that the URL of the requested web page has not been converted in the proxy server, the request for the web page from the client terminal device is requested to the web server. First request means,
URL reverse conversion means for returning the converted URL to the URL before conversion in response to the determination by the determination means that the URL of the requested web page has been converted in the proxy server;
Second request means for requesting the web server to request a web page specified by the URL returned by the URL reverse conversion means;
Each of the plurality of clickable areas included in the web page represented by the web page data transmitted from the web server in response to the request from the first request means or the second request means. Link destination URL conversion means for converting a link destination URL indicating a link destination of a web page linked to the URL so that the converted link destination is different in each of the plurality of clickable areas,
Requested by the web page data transmitting means for transmitting web page data representing the web page including the link destination URL converted by the link destination URL converting means to the client terminal device, and by the determining means When it is determined that the URL of the web page has been converted by the proxy server, the link destination URL before being converted by the link destination URL conversion means and the web page are requested from the client terminal device. The position in the page in the web page of the one clickable area clicked for the purpose and the link source URL that is the URL of the web page including the web page of the one clickable area are stored in association with each other. Storage control means for controlling the storage device,
Proxy server with An operation control method of a proxy server constituting a communication system including a proxy server and a web server,
When the determination means clicks one clickable area of the plurality of clickable areas included in the web page in the client terminal device, the URL of the web page requested from the client terminal device is the proxy. Determine if it has not been converted on the server,
When the first request means determines that the URL of the requested web page has not been converted in the proxy server by the determination means, the first request means sends a request for the web page from the client terminal device. Make a request to the above web server,
The URL reverse conversion means returns the converted URL to the URL before conversion in response to the determination by the determination means that the URL of the requested web page has been converted in the proxy server. ,
A second request means requests the web server for a request for a web page specified by the URL returned by the URL reverse conversion means;
The link destination URL converting means is included in the web page represented by the web page data transmitted from the web server in response to the request from the first request means or the second request means. A link destination URL indicating a link destination of a web page linked to each of the plurality of clickable areas is converted so that the converted link destination is different in each of the plurality of clickable areas,
Web page data transmission means transmits web page data representing the web page including the link destination URL converted by the link destination conversion means to the client terminal device,
When the storage control means determines that the URL of the requested web page has been converted in the proxy server by the determination means, the link destination before being converted by the link destination URL conversion means The URL and the link in the page of the one clickable area web page clicked to request a web page from the client terminal device and the URL of the web page including the clickable area at the position Control the storage device to store the original URL in association with each other,
Proxy server operation control method. A program for controlling a proxy server constituting a communication system having a proxy server and a web server,
The URL of the web page requested from the client terminal device is converted in the proxy server in response to clicking on one of the clickable regions included in the web page in the client terminal device. To determine if it is not
In response to determining that the URL of the requested web page has not been converted by the proxy server, the web server requests the web server to request a web page from the client terminal device,
In response to determining that the URL of the requested web page has been converted in the proxy server, the converted URL is returned to the URL before conversion,
Have the web server make a request for the web page identified by the returned URL,
A link indicating a link destination of a web page linked to each of a plurality of clickable areas included in the web page represented by the web page data transmitted from the web server in response to the request. The destination URL is converted so that the link destination after conversion is different in each of the plurality of clickable areas,
Web page data representing the Web page including the converted link destination URL is transmitted to the client terminal device,
In response to determining that the URL of the web page requested from the client terminal device has been converted by the proxy server, to request a web page from the link destination URL before conversion and the client terminal device The storage device stores the position in the page in the web page of the one clickable area clicked on and the link source URL that is the URL of the web page including the one clickable area in association with each other. Proxy server control program to be controlled.

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