Google’s New Tag for Webmasters
Google will be coming out with a new meta tag for webmasters which identifies pages that have a time restriction or are time sensitive.
The ‘unavailable_after’ meta tag will soon be recognized by Google according to Dan Crow, Director of Crawl Systems at Google .
“Google is coming out with a new tag called ‘unavailable_after’ which will allow people to tell Google when a particular page will no longer be available for crawling. For instance, if you have a special offer on your site that expires on a particular date, you might want to use the unavailable_after tag to let Google know when to stop indexing it.”
This is actually a good tag that was a long time comming.