Building a Simple Search Engine with PHP
Subject:   Use Exclusion Tags
Date:   2002-11-04 03:27:27
From:   anonymous2
Many search engine recognize tags that instruct them NOT to parse the markup that they enclose.

For example ...

<!-- stop_indexing -->

Here there might be a menu or other markup
that should not be indexed

<!-- start_indexing -->

It ensures that the only words derived from
significant content are indexed ... makes it
more precise for the user, and of course the
index is smaller -- so the whole thing works