Whice frames do spiders check?

Giganews Newsgroups
Subject: Whice frames do spiders check?
Posted by:  Robert Montgomery (info-blo…@north_woods_adventures.net)
Date: Sat, 15 Mar 2008

When spiders check framed Net sites, do they register the content of
left frames, right frames or framesets?

I'm trying to figure out how to boost the effectiveness of my key
phrases for search engines, and I don't know which of those three frames
  to update with better key phrases on and beneath the surface  of the