is there a way i can check to see when someone has last updated the page. i am aware of how to check the cache, but i would like to know when was the page last modified. thanks
You might compare cache date of the big three and see if all cached versions are all the same. If you find differences you can estimate page changed between two dates. Other than that I do not know unless you have access to server on which page is running. One of my sights has a javascript that would show last update date; however certain type cron jobs can effect this date.
Check the "Last-Modified" headers of the site. For example these are the headers for www.digitalpoint.com: HTTP/1.1 200 OK Date: Fri, 19 May 2006 06:38:45 GMT Server: Apache/1.3.20 Sun Cobalt (Unix) mod_ssl/2.8.4 OpenSSL/0.9.6 mod_auth_pam_external/0.1 mod_perl/1.26 Last-Modified: Thu, 23 Mar 2006 19:20:21 GMT ETag: "201041b-1f31-4422f4f5" Accept-Ranges: bytes Content-Length: 7985 Content-Type: text/html