Determine when was last update of a site possible?

How to know when a site has or hasn't been updated lastly

[silverbytes]

Does anybody know how to find out when a site has or hasn't been updated lastly?

Is there a way to notice update date of sites?

[lammert]

You could go to archive.org and check the site versions there.

[jomaxx]

The only problem with the Web Archive is that it's typically a year or two out of date. Try the Google/Yahoo/MSN cache instead to check for recent changes.

Also, you can check the server headers for the page, for the last-modified date. This works for static pages; for dynamic pages I imagine the header would always show the current date and time. Webmasterworld has a header check utility here:
[webmasterworld.com ]

[silverbytes]

Thank you

Archive org forget it. They could even block from htaccess and don't even appear there.

About google caché, that information tells you where google cached page last time, but I guess that is not the same date of when was last edition on that page by author...

Sever header method: throws information like this:

HTTP/1.0 302 Moved Temporarily
Server: Apache
X-Powered-By: PHP/4.3.9
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Location: http://www.example.com/eflp/luxury+cruise/pid9759/D33116/C15743
Content-Length: 3
Content-Type: text/html; charset=UTF-8
Vary: Accept-Encoding
Date: Tue, 25 Dec 2007 20:37:49 GMT
Connection: keep-alive
Set-Cookie: ServerID=1032; path=/

What does that means? Date is date where I performed the test. and the other date it shows is:
Expires: Thu, 19 Nov 1981 08:52:00 GMT

Does that mean it was last edited on 1981? No I don't think so... so how can that help?

[jomaxx]

That status 302 indicates that the address you entered is a temporary redirect to a different URL. Entering the final address may provide more information. The normal status when successfully requesting a page is 200.

[silverbytes]

Ok here you got:

HTTP/1.1 200 OK
Server: Microsoft-IIS/5.0
Date: Wed, 26 Dec 2007 13:24:44 GMT
X-Powered-By: ASP.NET
Connection: keep-alive
Connection: Keep-Alive
Content-Length: 50439
Content-Type: text/html
Set-Cookie: ASPSESSIONIDQSQRATQS=MMEHHMOCNBACGKJODELKPHND; path=/
Cache-control: private

That's a 200 but no relevant information again.
Any other method? I guess it's not impossible but still didn't find the way.

[barun]

I can think of another way to find out when a site was last updated.

Monitor the site with a hosted website monitoring service (Site24x7 for example), and check for content changes or presence/absence of keywords. Whenever a content is changed on a web page, the monitoring service will alert you.

Again this will not give you the exact date/time when the site was updated. but i guess this is worth a try.