Humboldt-Universität zu Berlin - Computer and Media Service

Valid HTML

In order to obtain a valid and accessible HTML page, please note the following when creating a page (among other things):

The free software Web Developer is available for Firefox, for example.
With its help you can check whether your page ...

  1. is written in valid HTML (Tools -> Check HTML)
  2. is accessible (Tools -> Check accessibility) before you publish it/make it visible externally
  3. has dead links (Tools -> W3C Link Checker).

The free software "Xenu's Link Sleuth" is also suitable for finding dead links. Xenu is not linked to any browser, easy to install, easy to use, fast.

You can find everything about HTML at:

If this is too boring for you, please visit the Golden Rules for Bad HTML.