Another concern occurs with framed sites. Search engines won't only index the frames page itself, but also each page that might appear within that page. The robots meta tag can stop these problems. The content parameter can include other options, as well. Table A summarizes them.
All Robots can index all pages in the current site.
None Robots should index no pages in the current site. Index Robots are welcome to index the current page. Noindex Robots shouldn't index the current page. Follow Robots are welcome to follow links from this page to find other pages. Nofollow Robots shouldn't follow links from this page.