JP2014109987A - Page display method, server and program between two or more terminals having different model information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for enabling even terminals having different model information to recognize page content displayed at the terminal of the other party in a browser synchronization service.SOLUTION: A Web server discloses a plurality of page content corresponding to the model information of terminals about the same address, and a plurality of terminals include the model information in a page acquisition request. A terminal 2A and a terminal 2B transmit the page acquisition request to the same address to the Web server, and respectively receive a response with different page content. Then, the Web server generates synthetic page content in which the page content transmitted to the terminal 2A is superimposed with the page content transmitted to the terminal 2B. Then, the Web server transmits page transition notification including the address of the synthetic page content to the terminal 2B. Then, the terminal 2B transmits the page acquisition request to the address, and receives a response with the synthetic page content from the Web server.

Description

  The present invention relates to a technique for synchronously displaying page contents at the same address on each display among a plurality of terminals.

  A terminal that can be connected to the Internet is generally equipped with a “Web browser” as a user interface for playing and operating various media. In particular, the browser enables asynchronous content acquisition and dynamic content drawing by the spread of AJAX (Asynchronous JavaScript + XML). On the other hand, in recent years, a page synchronization service for displaying page contents of the same address on each browser among a plurality of terminals has been provided.

  FIG. 1 is a system configuration diagram of a page synchronization service.

  According to FIG. 1, a Web server 1 that provides a page synchronization service and terminals 2A to 2C based on user operations are connected via the Internet. Here, it is assumed that one group that synchronizes display is configured by the terminals 2A, 2B, and 2C. For example, when the terminal 2A transmits a page acquisition request to the Web server 1 in response to the operation of the user A and acquires the page content, the same page content is distributed to the other terminals 2B and 2C. Be controlled. That is, the window page newly displayed on the browser of the terminal 2A is also displayed on the other terminals 2B and 2C. Such a function of the Web server 1 may be mounted on the Web server itself, or may be realized in cooperation with a synchronization control server that controls a group.

  2. Description of the Related Art Conventionally, there is a technique in which a control-side terminal and a controlled-side terminal synchronize operations on a browser of a control-side terminal with a controlled-side terminal by accessing a Web server via a synchronization control server (for example, patents). Reference 1). According to this technique, first, the control-side terminal and the controlled-side terminal each open a window of a node manager that manages communication with the synchronization control server separately from the window that is synchronized based on the user operation. For the control side terminal, a page transition event based on a user operation on the browser is detected by the page manager, and the event is transmitted to the synchronization control server. The synchronization control server transmits the event information to the controlled terminal. The controlled terminal receives the event information by the node manager, and the event information is reflected on the page. As described above, the page synchronization service is provided without adding a further function to the existing Web server by mediating the synchronization control server.

  Moreover, as a prior art based on the same applicant as the present application, a page displayed on the control-side terminal can be displayed on the control-side terminal using a third-party control server without adding further functions to the existing Web server. There is also a technique for displaying the image (see Patent Document 2, for example). According to this technique, the control-side terminal acquires a control UI (User Interface) page that transmits event information to a third-party control server. Also, the controlled terminal acquires a controlled UI page that reflects the event information received from the third party control server on the page. Then, the third party control server mediates to realize browser synchronization from the control UI page to the controlled UI page.

JP 2000-215173 A JP 2012-14635 A

CSS, PHP, Javascript, [online], [November 26, 2012 search] that switches operation by determining access from smartphone, Internet <URL: http://www.myu-zin.com/webridge/ archives / 1038.html>

  In recent years, mobile terminals are not limited to personal computers, and mobile terminals with a small display size, such as mobile phones, smartphones, and tablets, have become widespread. For this reason, the Web server often publishes a plurality of page contents corresponding to the terminal model information in advance for the same address. For example, for the same address, mobile page weight content for smartphones is released together with normal page content for personal computers. In this case, even if both terminals of the personal computer and the smartphone transmit a page acquisition request with the same address, normal page content is responded to the personal computer, and mobile lightweight page content is responded to the smartphone (for example, Non-patent document 1).

  However, according to the technique of the page synchronization service described above, no consideration is given to the fact that model information differs between terminals.

  For example, a case is assumed in which a conversation is made between a terminal of a call center support member and a customer terminal while browsing a browser in which page contents are synchronized. Here, the call center side tries to explain based on the page content displayed on its own personal computer display, but it may look different from the page content displayed on the customer-side smartphone. In other words, depending on the model of the customer's terminal, the call center support staff cannot view how it is displayed on the terminal. In such a case, the conversation of the support center of the call center and the conversation of the customer tend to be jerky. As described above, in the page synchronization service, the mismatch of page contents displayed by different model information affects communication between users.

  Therefore, the present invention provides a page display method, server, and program for recognizing page contents displayed on a partner terminal even when terminals having different model information are used for a service for synchronizing display screens of browsers. The purpose is to provide.

According to the present invention, for a system having a first terminal, a second terminal, and a Web server that distributes page content, the display of page content is synchronized between the first terminal and the second terminal. In the page display method,
The Web server publishes a plurality of page contents corresponding to the terminal model information for the same address,
The first terminal and the second terminal have different model information, and include the model information in the page acquisition request to be transmitted,
A first step in which each of the first terminal and the second terminal transmits a page acquisition request of the same address to be synchronized to the Web server and receives a response of different page contents according to the model information from the Web server When,
A second step in which the Web server generates composite page content in which the page content transmitted to the first terminal is superimposed on the page content transmitted to the second terminal;
A third step in which the Web server transmits a page transition notification including a new address assigned to the composite page content to the second terminal;
The second step includes a fourth step of transmitting a page acquisition request to an address included in the page transition notification and receiving a response of the composite page content from the Web server.

According to another embodiment of the page display method of the present invention,
For the first step,
An eleventh step in which the second terminal transmits a page acquisition request to the Web server;
A twelfth step in which the Web server responds to the second terminal with the page content corresponding to the page acquisition request;
A thirteenth step in which the Web server transmits a page transition notification requesting access to the address of the page content to the first terminal;
A fourteenth step in which the first terminal transmits a page acquisition request including model information to an address included in the page transition notification;
It is also preferable that the Web server has a fifteenth step of responding to the first terminal with the page content corresponding to the page acquisition request.

According to another embodiment of the page display method of the present invention,
The page acquisition request is an HTTP (HyperText Transfer Protocol) GET request,
It is also preferable that the model information is included in the User-Agent of the GET request.

  According to another embodiment of the page display method of the present invention, it is also preferable to superimpose page content using a canvas tag of HTML5 for the second step.

According to the present invention, in the Web server that synchronizes the display of the page content between the first terminal and the second terminal,
Page content storage means for storing a plurality of page contents corresponding to the model information of the terminal for the same address;
A page acquisition request including model information is received from each of the first terminal and the second terminal, the page content corresponding to the model information is searched from the page content storage means, and the response of the page content is returned to the terminal. Page publishing means,
A synthesized page content generating unit that generates a synthesized page content in which the page content transmitted to the first terminal is superimposed on the page content transmitted to the second terminal, and accumulates the synthesized page content in the page content accumulation unit;
Page transition notification transmitting means for transmitting a page transition notification including a new address assigned to the composite page content to the second terminal;
The page publication means receives a page acquisition request for the address included in the page transition notification from the second terminal, searches the page content storage means for the synthesized page content corresponding to the address, and responds to the synthesized page content Is returned to the second terminal.

According to another embodiment of the web server of the present invention,
Page publishing means
A page acquisition request including model information is received from the second terminal, the page content corresponding to the model information is searched from the page content storage means, and the response of the page content is returned to the terminal.
Send a page transition notification requesting access to the page content address to the first terminal,
Receiving a page acquisition request for the address included in the page transition notification from the first terminal, searching for page content corresponding to the model information from the page content storage means, and returning a response of the page content to the terminal Is also preferable.

According to another embodiment of the web server of the present invention,
The page acquisition request is an HTTP GET request,
It is also preferable that the model information is included in the User-Agent of the GET request.

  According to another embodiment of the Web server of the present invention, it is also preferable that the composite page content generation unit superimposes the page content using an HTML5 canvas tag.

According to the present invention, in a program for causing a computer mounted on a Web server to synchronize display of page contents between a first terminal and a second terminal to function,
Page content storage means for storing a plurality of page contents corresponding to the model information of the terminal for the same address;
A page acquisition request including model information is received from each of the first terminal and the second terminal, the page content corresponding to the model information is searched from the page content storage means, and the response of the page content is returned to the terminal. Page publishing means,
A synthesized page content generating unit that generates a synthesized page content in which the page content transmitted to the first terminal is superimposed on the page content transmitted to the second terminal, and accumulates the synthesized page content in the page content accumulation unit;
Causing the computer to function as page transition notification transmission means for transmitting a page transition notification including a new address assigned to the composite page content to the second terminal;
The page publication means receives a page acquisition request for the address included in the page transition notification from the second terminal, searches the page content storage means for the synthesized page content corresponding to the address, and responds to the synthesized page content The computer is made to function so as to send a reply to the second terminal.

  According to the page display method, server, and program of the present invention, the page content displayed on the other party's terminal can be recognized even with terminals having different model information regarding the service for synchronizing the display screen of the browser. it can.

It is a system block diagram of a page synchronization service. It is a sequence diagram of a page synchronization service. It is a screen display figure of the terminals which have different model information. It is a sequence diagram of a page synchronization service in the present invention. It is a screen display figure of the terminals which have different model information in the present invention. It is a function block diagram of the Web server in this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 2 is a sequence diagram of the page synchronization service.

[First step: S1]
The Web server 1 receives a page acquisition request of the same address to be synchronized from the terminal 2A and the terminal 2B, but returns a response of a different page content according to the model information of the terminal.

(S10) First, the terminal 2A and the terminal B each establish a session with the Web server 1 and execute a group participation sequence for synchronizing the display of pages.
Specifically, the terminal 2 transmits a page acquisition request with the URL (Uniform Resource Locator) of the login page of the Web server 1 as a destination. In response to this, the Web server 1 returns a page response including the login page to the terminal 2.
Next, a user ID and a password are input to the login page displayed in the window of the browser of the terminal 2 according to the user operation. Such authentication information is transmitted to the Web server 1. On the other hand, the Web server 1 authenticates whether or not the user is to provide a service based on the user ID and the password. When it is determined that the user is valid, a page response including the group list page is returned to the terminal 2.
Next, the terminal 2 displays a group list page in the browser window, and selects a desired group according to a user operation. Then, the terminal 2 transmits a request for joining the group to the Web server 1. In response to this, the Web server 1 returns a synchronization management page in which the synchronization control script is embedded to the terminal 2.
Thereby, the Web server 1 starts providing the page synchronization service to the terminals 2A and 2B.

  Here, the Web server 1 transmits a synchronization management page in which the “synchronization control script” is embedded to the terminal. Accordingly, the page contents at the same address can be displayed in synchronization between a plurality of terminals without the user intentionally installing the synchronization management application on the terminals.

  A “script” refers to a simple program that does not need to be compiled (converted) into machine language. In general, executable programs need to compile source code into machine language, whereas scripts do not require compilation. The script is generally embedded in HTML (Hyper Text Markup Language) of the page content. Thus, a special development environment is not required, and various functions that cannot be provided only by HTML are provided by executing a script. Examples of the script description language include JavaScript (registered trademark), VBScript (registered trademark), Perl, and the like.

Here, JavaScript is an object-oriented script language that should be able to be interactively expressed on the Web. JavaScript can be executed by an existing browser installed in the terminal.
For example, the following tags can be incorporated into an HTML file.
<script type = "text / javascript" src = "sample.js">
・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・
</ script>
This tag means "JavaScript is used and the script file is sample.js".

  All functions on the terminal side are embedded as a synchronization control script in the page response transmitted from the Web server. Therefore, even a terminal equipped with an existing Web browser can be realized only by providing the Web server of the present invention.

  According to the present invention, the Web server 1 publishes a plurality of page contents corresponding to the terminal model information for the same address.

(S11) Assume that a URL for opening a desired page is clicked on the terminal 2B in response to a user operation. This is detected as an event of page transition to the page by the synchronization control script. Then, the terminal 2A transmits a page acquisition request including the URL of the page to the Web server 1.

The page acquisition request is an HTTP (HyperText Transfer Protocol) GET request, and model information is included in the User-Agent. Specifically, for example, the following GET request code is used.
GET / HTTP / 1.1
Accept: image / gif, image / jpeg, * / *
Accept-Language: en
Accept-Encoding: gzip, deflate
User-Agent: Mozilla / 5.0 (Linux; U; Android 4.0.3; ja-jp; URBANO PROGRESSO Build / 010.0.3000) AppleWebKit / 534.30 (KHTML, like Gecko) Version / 4.0 Mobile Safari / 534.30
Host: www.xxx.zzz
Connection: Keep-Alive

(S12) The Web server 1 determines whether to respond with normal page content or mobile lightweight page content according to the model information included in the page acquisition request. Then, a page response (200 OK) including the determined page content is returned to the terminal 2B. According to FIG. 2, it is assumed that the terminal 2B is a personal computer and has received normal page content.

(S13) Upon receiving the page response, the terminal 2B executes a rendering process on the received page content and displays the page on the display.

(S14) When the web server 1 transmits a page response to the terminal 2B (S12), the Web server 1 transmits a “page transition notification” to the terminal 2A belonging to the group synchronized with the terminal 2B. The page transition notification includes the URL of the page requested from the terminal 2B in S11.

The page transition notification is for notifying the other terminal to acquire the page content when the page content to be synchronized is updated by the page acquisition request from the one terminal. The page transition notification is, for example, HTTP / XML POST SOAP (Simple
Using the Object Access Protocol, it is represented by the following code: Note that SOAP is a protocol for exchanging messages with accompanying information called envelopes (envelopes) in XML documents using the HTTP protocol.
<? xml version = "1.0" encoding = "UTF-8"?>
<soapenv: Envelope xmlns: soapenv = "http://schemas.xmlsoap.org/soap/envelope/"
xmlns: xsd = "http://www.w3.org/2001/XMLSchema"
xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance">
<soapenv: Body>
<syncCallRequest xmlns = "http://kddilabs.jp/wsdl/websync/v1/local">
<sessionID> a4f6cd5ddbf32bc24a0450ebdb766bce </ sessionID>
<jsonReq>{";status";:";1";,";isinitiator";:";true";,";urlprev";
: "; https: // <Web server>/index.jsp";}</jsonReq>#Before transition
<DEFANGED_option> https: // <Web server> /index.jsp?tag=1
</ DEFANGED_option>#After transition
</ syncCallRequest>
</ soapenv: Body>
</ soapenv: Envelope>
Here, callstatus = 2 represents a page transition notification. The browser (calleeID (02)) that has received this page transition notification accesses the web page and receives the web page to which callerID (01) has transitioned.

(S15) The terminal 2A that has received the page transition notification transmits a page acquisition request to the URL included in the page transition notification. Similarly to S11, the terminal 2A also includes model information in the page acquisition request.

(S16) The Web server 1 determines whether to respond with normal page content or mobile lightweight page content according to the model information included in the page acquisition request. Then, a page response (200 OK) including the determined page content is returned to the terminal 2A. According to FIG. 2, it is assumed that the terminal 2A is a smartphone and has received mobile lightweight page content.

(S17) The terminal 2A that has received the page response executes a rendering process for the page content of the page, and displays the page on the display.

(S18) Finally, the terminal 2A returns an ACK to the Web server 1.
As a result, page contents with the same address are synchronously displayed on both the terminal 2A and the terminal 2B.

  FIG. 3 is a screen display diagram of terminals having different model information.

  When the model information is different between the terminal 2A and the terminal 2B, the page contents are different even with the same address. For example, normal page content of a personal computer may be distributed to the terminal 2A, whereas page content for mobile of a smartphone may be distributed to the terminal 2B. If it does so, even if the page content of the same address is synchronized between terminals, the page content which a mutual user browses will look different.

  Here, according to the present invention, the sequence following S1 in FIG. 2 is further executed.

FIG. 4 is a sequence diagram of the page synchronization service in the present invention.
FIG. 5 is a screen display diagram of terminals having different model information in the present invention.

[Second step: S2]
The Web server 1 generates composite page content in which the page content transmitted to the terminal 2A is superimposed on the page content transmitted to the terminal 2B. A new URL is assigned to the newly generated composite page content. Here, it is also preferable to use an HTML5 canvas tag to superimpose the other page content on one page content. According to <canvas>, page contents can be superimposed on each other only with HTML and JavaScript. For example, the following code is used.
<canvas id = "canvas01" style = "position: absolute;
left: 800px; top: 30px; "width =" 200 "height =" 400 ">
</ canvas>
Not only the display position to be superimposed, but also a reduction rate (for example, 50% reduction) can be designated.
[Third step: S3]
The Web server 1 transmits a page transition notification including a new address assigned to the composite page content to the terminal 2B.

  Note that it is also preferable to use the “Comet” technology as a technology for transmitting “page transition notification” from the Web server 1 to the terminal 2. “Comet” refers to a technology that can transmit an event that has occurred in a server to the client without receiving a request message from the client. Specifically, the server does not immediately respond to the request from the client but keeps it in a suspended state. When an event occurs on a predetermined page, the server responds to the page. As a result, an event occurring in the server can be immediately transmitted to the client.

  According to FIG. 4, the terminals 2 that synchronize with each other transmit a Comet request to the Web server 1 in advance. On the other hand, the Web server 1 puts this Comet request on hold. Thereafter, the Web server 1 can transmit a comet response of the page transition notification to the terminal 2 when a trigger for transmitting the page transition notification occurs.

[Fourth Step: S4]
(S41) The terminal 2B transmits a page acquisition request toward the address included in the page transition notification.
(S42) In response to this, the Web server 1 returns a response of the composite page content to the terminal 2B.
(S43) The terminal 2B that has received the page response executes a rendering process on the composite page content and displays the page on the display.

  Thereafter, as shown in FIG. 5, even when the Web server 1 receives a page acquisition request with the same address from the terminal 2A and the terminal 2B, the page content for mobile light weight is displayed in the terminal 2A as the page synchronization service. And the terminal 2B operates to send back a response of the newly generated composite page content.

  FIG. 6 is a functional configuration diagram of the Web server in the present invention.

  According to FIG. 6, the Web server 1 includes a communication interface 10 connected to the Internet, an HTTP processing unit 11, a group participation processing unit 12, a page content storage unit 13, a page disclosure unit 14, and a synthesized page content generation. Unit 15 and page transition notification transmission unit 16. These functional components excluding the communication interface are realized by executing a program that causes a computer mounted on the server to function.

  The HTTP processing unit 11 exchanges messages based on HTTP with the terminal 2.

  The group participation processing unit 12 manages a group of terminals 2 that synchronize pages. Specifically, the group participation sequence in S10 of FIG. 2 described above is executed.

  The page content storage unit 13 stores a plurality of page contents corresponding to the terminal model information for the same address.

The page disclosure unit 14 receives a page acquisition request including model information from each of the terminal 2A and the terminal 2B, searches the page content storage unit 13 for page content corresponding to the model information, and sends a response of the page content Reply to the terminal. Specifically, the following processing is executed with reference to S1 of FIG.
(1) A page acquisition request including model information is received from the terminal 2B, the page content corresponding to the model information is searched from the page content storage unit 13, and a response of the page content is returned to the terminal.
(2) A page transition notification requesting access to the page content address is transmitted to the terminal 2A.
(3) A page acquisition request for the address included in the page transition notification is received from the terminal 2A, the page content corresponding to the model information is searched from the page content storage unit 13, and the response of the page content is returned to the terminal To do.

  In addition, even when the page disclosure unit 14 receives a page acquisition request for the address indicated in the page transition notification from the terminal 2B, the page disclosure unit 14 displays the composite page content corresponding to the address from the page content storage unit 13. The search is performed, and the response of the composite page content is returned to the terminal 2B (see S41 and S42 in FIG. 4).

  The composite page content generation unit 15 generates composite page content in which the page content transmitted to the terminal 2A is superimposed on the page content transmitted to the terminal 2B, and stores the composite page content in the page content storage unit 13. Here, a new address is also assigned to the composite page content.

  The page transition notification transmission unit 16 transmits a page transition notification including a new address assigned to the composite page content to the terminal 2B. Here, a page transition notification is transmitted to another terminal belonging to the same group as the terminal 2 that transmitted the page acquisition request. The page transition notification notifies the terminal 2A to acquire the page content when the page content to be synchronized is updated by the page acquisition request from the terminal 2B.

  As described above in detail, according to the page display method, server, and program of the present invention, the service for synchronizing the display screen of the browser is displayed on the other party's terminal even if the terminals have different model information. Can be recognized.

  Thus, for example, when a conversation is made while browsing the page content of the same address that is synchronized between the terminal of the call center support staff and the customer terminal, the call center support staff displays the screen display image of the customer terminal. You can communicate while browsing. For example, a call center support person operating a personal computer can check a screen display image viewed by a user operating a smartphone.

  Various changes, modifications, and omissions of the above-described various embodiments of the present invention can be easily made by those skilled in the art. The above description is merely an example, and is not intended to be restrictive. The invention is limited only as defined in the following claims and the equivalents thereto.

DESCRIPTION OF SYMBOLS 1 Web server 10 Communication interface 11 HTTP process part 12 Group participation process part 13 Page content storage part 14 Page publication | presentation part 15 Composite page content production | generation part 16 Page transition notification transmission part 2 Terminal

Claims (9)

In a page display method for synchronizing display of page contents between a first terminal and a second terminal for a system having a first terminal and a second terminal, and a Web server that distributes page contents,
The Web server publishes a plurality of page contents according to terminal model information for the same address,
The first terminal and the second terminal have different model information, and include the model information in the page acquisition request to be transmitted,
Each of the first terminal and the second terminal transmits a page acquisition request of the same address to be synchronized to the Web server, and receives a response of a different page content according to the model information from the Web server. Steps,
A second step in which the Web server generates composite page content in which the page content transmitted to the first terminal is superimposed on the page content transmitted to the second terminal;
A third step in which the Web server transmits a page transition notification including a new address assigned to the composite page content to a second terminal;
A second step in which the second terminal transmits a page acquisition request to an address included in the page transition notification and receives a response of the composite page content from the Web server. Display method. For the first step,
An eleventh step in which the second terminal transmits a page acquisition request to the Web server;
A twelfth step in which the web server responds to the second terminal with the page content corresponding to the page acquisition request;
A thirteenth step in which the web server transmits a page transition notification requesting access to the address of the page content to the first terminal;
A fourteenth step in which the first terminal transmits a page acquisition request including model information to an address included in the page transition notification;
The page display method according to claim 1, wherein the Web server has a fifteenth step of responding to the first terminal with the page content corresponding to the page acquisition request. The page acquisition request is an HTTP (HyperText Transfer Protocol) GET request,
The page display method according to claim 1, wherein the model information is included in a User-Agent of the GET request.   The page display method according to claim 3, wherein the page content is superimposed using a canvas tag of HTML5 in the second step. In a web server that synchronizes display of page content between a first terminal and a second terminal,
Page content storage means for storing a plurality of page contents corresponding to the model information of the terminal for the same address;
A page acquisition request including model information is received from each of the first terminal and the second terminal, the page content corresponding to the model information is searched from the page content storage means, and the response of the page content is sent to the terminal. Page publishing means to reply,
A synthesized page content generating unit that generates a synthesized page content in which the page content transmitted to the first terminal is superimposed on the page content transmitted to the second terminal, and accumulates the synthesized page content in the page content accumulation unit;
Page transition notification transmitting means for transmitting a page transition notification including a new address assigned to the composite page content to a second terminal;
The page publication means receives a page acquisition request for the address included in the page transition notification from the second terminal, searches the page content storage means for the synthesized page content corresponding to the address, A Web server comprising: returning a response of content to the second terminal. The page publishing means is
A page acquisition request including model information is received from the second terminal, the page content corresponding to the model information is searched from the page content storage means, and the response of the page content is returned to the terminal.
Sending a page transition notification requesting access to the address of the page content to the first terminal;
A page acquisition request for the address included in the page transition notification is received from the first terminal, the page content corresponding to the model information is searched from the page content storage means, and the response of the page content is sent to the terminal 6. The Web server according to claim 5, wherein a reply is made. The page acquisition request is an HTTP GET request,
7. The Web server according to claim 5, wherein the model information is included in a User-Agent of the GET request.   8. The Web server according to claim 7, wherein the composite page content generation unit superimposes the page content using an HTML5 canvas tag. In a program for causing a computer mounted on a web server to synchronize display of page contents between a first terminal and a second terminal to function,
Page content storage means for storing a plurality of page contents corresponding to the model information of the terminal for the same address;
A page acquisition request including model information is received from each of the first terminal and the second terminal, the page content corresponding to the model information is searched from the page content storage means, and the response of the page content is sent to the terminal. Page publishing means to reply,
A synthesized page content generating unit that generates a synthesized page content in which the page content transmitted to the first terminal is superimposed on the page content transmitted to the second terminal, and accumulates the synthesized page content in the page content accumulation unit;
Causing the computer to function as a page transition notification transmitting means for transmitting a page transition notification including a new address assigned to the composite page content to the second terminal;
The page publication means receives a page acquisition request for the address included in the page transition notification from the second terminal, searches the page content storage means for the synthesized page content corresponding to the address, A program for a Web server, which causes a computer to function as a response of a content to a second terminal.

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