× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. WEB400
  3. June 2005

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

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

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.