Yahoo! on Meta Tags aka X-Robots-Tag

This isn’t much of SEO, but more of search engine customization on Yahoo. This can be quite helpful on snippet displays; so, this is more of just marketing. Here’s what Yahoo wrote:

• NOINDEX — If you don’t want to show the URL in the Yahoo! Search results.Note: We’ll still need to crawl the page to see and apply the tag, so if you don’t wish to have the page crawled, use robots disallow on robots.txt.
• NOARCHIVE — If you don’t want to display cache link in the search results page.
• NOSNIPPET — If you don’t want to display summary in the search results page.
• NOFOLLOW — If you don’t want Yahoo! to crawl links in the page.

Any of these x-robots-tags can be used in the below form:

<META NAME="Slurp" CONTENT="NOARCHIVE">

“Slurp” refers to what the Yahoo bot is called, and NOARCHIVE can be replaced with any of the above x-robots-tags (nofollow, nosnippet, noindex). None of these should be case sensitive, but I’m not sure if “Slurp” is.