Is used to tell crawler-robots of search engines when to revisit the page. Should be set if the page content changes regularly.
As crawler-bots crawl regularly nowadays, this tag is marked as Deprecated.
We recommend using a robots.txt-file insteads of this meta-extension or a combination of both.
<meta name="revisit-after" content="5 days">
In the WHATWG WikiUp to date: v2.3.5