Apparently, Dan Crow, director of crawl systems at Google, says Google is to release a new meta tag called "unavailable_after." This "unavailable_after" tag will allow a webmaster to tell Google when the Googlebot should no longer crawl a certain page. This tag could be used to give Googlebot information about pages that are online for a fixed period like special offer pages.
Do you think this tag is useful?
Do you think this tag is useful?