CommentFriday, July 13, 2007
The unavailable_after meta tag on a web page tells a spider when it should stop indexing a particular page.
Webmaster World started buzzing today with a news of a new meta tag being proposed by Google. The site picked up the unavailable_after news from Dan Crow, director of crawl systems at Google, via SEO pro Jill Whalen.
Whalen's account of the news appeared at High Rankings:
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.A formal date for supporting the tag has not yet been announced.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. Or perhaps you write articles that are free for a particular amount of time, but then get moved to a paid-subscription area of your site.
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