[lug] How tell last modified date of third party website pages?

[karl horlen]

--- Zan Lynx <zlynx at acm.org> wrote:

> 
> On Fri, 2007-12-14 at 14:31 -0800, karl horlen
> wrote:
> > Is this possible from a client browser or programs
> > like wegt or curl (possibly mirroring site
> locally)?
> > 
> > I assume this is not possible for dynamically
> > generated web pages, only static html pages?
> 
> This is the header you want:
>   Last-Modified: Sun, 09 Sep 2007 05:37:21 GMT
> 
> That was from a web page of mine.

How did you get it?

I've tried snooping a few pages using firebug in
firefox and I don't see Last-Modified in the http
headers.

I've also tried using wget with --save-headers option
and I don't see Last-Modified in the saved pages.

> A dynamic page could generate a last-modified header
> if it wanted to.
> Most don't bother.

That's probably why I'm not seeing anything.  



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