Does your server-side script dynamically send different content depending on the browser type or the browser version that's requesting the page? If so, you can use HTML-Kit's Open URL feature to examine the exact output of the script. Select "Open URL" from the "File" menu and type the address of the script or the web page. Pick or type the user agent signature to send to the script. The "Include HTTP headers" option can be used to view the headers sent by the web server, such as content expiration dates, cookies, redirects and more.