A couple of quick little questions on page views and proxy caching

[totter]

Excuse me if this has been answered before, I didn't know how to search for this.
I am just starting to learn about HTTP headers, proxy caching and how they affect stats.
According to the web cacheability tool on web-caching.com my HTTP header file has the following attributes:

mysite.com/mypage.htm
Expires: now (Tue, 14 Jan 2003 08:12:35 GMT)
Cache-Control: no-cache
Last-Modified: 1 week 2 days ago (Sat, 04 Jan 2003 20:12:07 GMT) validated

Here's what I'm thinking. Let me know if this is right,
*If I were to modify this page in some way I should see all of the requests for this page in my log files for 1 day.

*If I don't modify this page then I won't see all of the requests for this page because my server just validates the page and the requesting server just displays the cached version of the web page on a viewer's browser if it's available. I won't see the requests for the page because it has allready been cached.

thanks
tot

[Brett_Tabke]

I believe the no-cache tag will require the browser to redl the page all the time (some even on back button). That in turn will cause all the page views to show in your logs.

[totter]

Thanks Brett

You got me thinking... In AOL's case could different AOL proxy servers request the same object during the same user session? For example if an aol user views a page, clicks on a link, then hits his back button, could it be possible that two different aol proxy servers made requests for the same object?

[jdMorgan]

totter,

AOL users are harder to track because AOL does in fact switch requesting IP addresses during a "seesion" - and I assume that means they're switching proxy servers.

Jim

[Brett_Tabke]

I think it is s-maxage that is specifically for proxy servers.

Cache-Control: max-age=0
Cache-Control: s-maxage=0

[Ash]

Hi totter, I saw this and thought of you ;) [mnot.net...]

[onlineleben]

Nice find, Ash.
Lots of things clear to me now.

[totter]

Explained much to me too. Thanks for thinking of me.