i-net Doqua comes with a set of default triggers. They are based on JTidy and do several checks on HTML documents.
This trigger does a validation of your file against the DTD defined in the document's header. If you use this trigger you will have to define a DTD - or the check will fail.
Your documents should have the following layout (you can of course select whatever HTML version you like):
TidyLinkChecker tests if internal links defined in your documents are still alive. It also checks references inside the document.
Editors often copy pages to create new ones. But they often forget to change the meta information in the documents' headers. Use this trigger to avoid duplicates throughout your documentation.