Web >> Search >> How to control search engine robots behaviour using ROBOTS.TXT

http://mydomain.com/robots.txt If you cannot access your server's root location you will not be able to use a robots.txt file to exclude pages from your index. The robots.txt is a TEXT file (not HTML!) which has a section for each robot to be controlled. Each section has a user-agent line which names the robot to be controlled and has a list of "disallows" and "allows". Each disallow will prevent any address that starts with the disallowed string from being accessed. Similarly, each allow will permit any address that starts with the allowed string from being accessed. The (dis)allows are scanned in order, with the last match encountered determining whether an address is allowed to be used or not. If there are no matches at all then the address will be used. Here's an example: user-agent: FreeFind disallow: /mysite/test/ disallow: /mysite/cgi-bin/post.cgi?action=reply disallow: /a In this example the following addresses would be ignored by the spider: http://adomain.com/mysite/test/index.html http://adomain.com/mysite/cgi-bin/post.cgi?action=reply&id=1 http://adomain.com/mysite/cgi-bin/post.cgi?action=replytome http://adomain.com/abc.html and the following ones would be allowed: http://adomain.com/mysite/test.html http://adomain.com/mysite/cgi-bin/post.cgi?action=edit http://adomain.com/mysite/cgi-bin/post.cgi http://adomain.com/bbc.html It is also possible to use an "allow" in addition to disallows. For example: user-agent: FreeFind disallow: /cgi-bin/ allow: /cgi-bin/Ultimate.cgi allow: /cgi-bin/forumdisplay.cgi This robots.txt file prevents the spider from accessing every cgi-bin address from being accessed except Ultimate.cgi and forumdisplay.cgi. Using allows can often simplify your robots.txt file. Here's another example which shows a robots.txt with two sections in it. One for "all" robots, and one for the FreeFind spider: user-agent: * disallow: /cgi-bin/ user-agent: FreeFind disallow: In this example all robots except the FreeFind spider will be prevented from accessing files in the cgi-bin directory. FreeFind will be able to access all files (a disallow with nothing after it means "allow everything").