All well-behaved robots (which includes all search engine spiders) will request http://example.com/robots.txt before doing anything else. If you wish to allow all robots access to your entire site, then you do not need this plugin.
You need robots.txt (and therefore this plugin) to achieve any of the following goals:
You can find much more information in the robotstxt.org FAQ. You might also want to peruse some tips for optimizing your blog's rank in Google (though I do not necessarily endorse these tips).
You may ask questions by posting a comment to the KB Robots.txt plugin page. (If you post your support questions as comments below, I probably won't see them.)




