24871 2014-02-28 22:41:35 +0000 Meta "robots" fails and appears as an unregistered value in HTML5 validation 2015-08-23 07:07:07 +0000 1 1 1 Unclassified HTML Checker General unspecified All All RESOLVED FIXED P2 blocker --- 1 sc mike+validator mike www-validator-cvs oldest_to_newest 101675 0 sc 2014-02-28 22:41:35 +0000 Meta robots fails and appears as an unregistered value in HTML5 validation. (of course this meta is registered, exists and is currently in use in millions of websites). Validation fails with the following message: =============== Bad value robots for attribute name on element meta: Keyword robots is not registered. <meta name="robots" content="index,follow" /> =============== For the same URL, the html5 validation from validator.nu passes full OK. For testing, I used this URL http://www.artmajeur.com/en/ Thank you 101691 1 mike 2014-03-01 03:38:43 +0000 Thanks for reporting this. The problem was caused by a coding mistake a made yesterday but I've now fixed it.