Re: Is there a way that I can tell if a web page on anotherweb site has changed.

I was going to suggest this too.  Just hope the HTTP server
accepts that header and doesn't ignore it.  

Brad
www.bvstools.com

On Tue, 14 Jun 2005 13:33:21 -0500 (CDT)
 web400@xxxxxxxxxxxxxxxx wrote:
> Hello,
> 
> >I am using socket methods to make http requests to
> certain web sites
> >every hour and I want to alert a user if the web page on
> another site
> >changes.  Can anyone tell me an easy way to do this.
> 
> Send the "IF-MODIFIED-SINCE" header on the HTTP request.
> The server will then only re-send the page if it has been
> modified since the date/time you send.
> 
> Example:
> 
> GET /index.html HTTP/1.1
> Host: www.example.com:80
> If-Modified-Since: Tue, 14 Jun 2005 12:46:05 GMT
> 
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Bradley V. Stone
BVS.Tools
www.bvstools.com