Tim: >> Have you considered just comparing HTTP headers? On Mon, 2006-10-09 at 11:59 -0700, Paul Lemmons wrote: > Ok, I have considered it now and it would be fairly easy to accomplish. > I am not sure it would be valuable though. There is a significant amount > of data in the headers that is different every time the page is called. > Are there particular fields that are only updated when the content of > the page has changed? Or were you looking for something else completely? There's last-modified, expires, and etag headers (basically a checksum) from the webserver, that spring to mind. Any one of them would let you know that the page had changed, with less data to need parsing, and less of a load on the webserver. Have a quick look at the Apache manual, or a website about caching for clues. -- (Currently running FC4, but testing FC5, if that's important.) Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.