Rocket Validator automatically checks your pages on the W3C Validator.
FBML - Facebook Markup Language was used to embed Facebook-specific tags on web sites, was retired in 2011 but this still appears on
<html> tags on some sites. You should consider removing this from your site and use alternative ways to do that.
Related W3C validator issues
The old way for using Open Graph Protocol tags in web pages is not valid HTML5, you should use the updated markup as specified in https://ogp.me
As an example, the following is the Open Graph protocol markup for The Rock on IMDB:
<!DOCTYPE html> <html lang="en" prefix="og: https://ogp.me/ns#"> <head> <title>The Rock (1996)</title> <meta property="og:title" content="The Rock" /> <meta property="og:type" content="video.movie" /> <meta property="og:url" content="https://www.imdb.com/title/tt0117500/" /> <meta property="og:image" content="https://ia.media-imdb.com/images/rock.jpg" /> </head> </html>
25,000 HTML checks per month. Is that enough for your site?
Save time using our automated web checker. Let our crawler check your web pages on the W3C Validator.