Method, apparatus and system for webpage access control

An apparatus for webpage access control, comprising:

• a sending unit configured to send a webpage access request which carries a first URL to a browser control;
• a receiving unit configured to receive N number of callbacks corresponding to the webpage access request from the browser control, wherein N is an integer greater than 1;
• a comparing unit configured to compare a second URL carried in a first callback with recorded M number of trusted URLs, wherein M is a positive integer and the first callback is any one callback among N number of callbacks;
• and
• a control unit configured to:
• instruct the browser control to access a webpage corresponding to the second URL when the second URL is the same as one of the M trusted URLs;
• determine whether the webpage is an embedded sub-webpage when the second URL is different from any one of the M trusted URLs;
• instruct the browser control to deny access to or deny display of the webpage corresponding to the second URL when it is determined that the webpage is not an embedded sub-webpage;
• and
• instruct the browser control to deny display of the sub-webpage but to allow display an original webpage when it is determined that the webpage is an embedded sub-webpage.

A system for webpage access control, comprising:

• a webpage server configured to provide webpages;
• a DNS server configured to manage a database that maps domain names to IP addresses;
• and
• a user terminal, comprising:
• a client;
• a browser control configured to receive a webpage access request which carries a first URL from the client and to return N number of callbacks corresponding to the webpage access request to the client, wherein N is an integer greater than 1 and the first callback is any one callback among N number of callbacks;
• and
• wherein the client configured to:
• send the webpage access request which carries the first URL to the browser control;
• receive N number of callbacks corresponding to the webpage access request from the browser control;
• compare a second URL carried in a first callback with recorded M number of trusted URLs, wherein M is a positive integer;
• instruct the browser control to access the webpage corresponding to the second URL when the second URL is the same as one of the M trusted URLs;
• determine whether the webpage is an embedded sub-webpage when the second URL is different from any one of the M trusted URLs;
• instruct the browser control to deny access to or deny display of the webpage corresponding to the second URL when it is determined that the webpage is not an embedded sub-webpage;
• and
• instruct the browser control to deny display of the sub-webpage but to allow display an original webpage when it is determined that the webpage is an embedded sub-webpage.