HTML Checking for Large Sites

Rocket Validator automatically checks your pages on the W3C Validator.

Element “meta” is missing one or more of the following attributes: “content”, “itemprop”, “property”.

A <meta> element without a content, itemprop or property attributes has been found in an unexpected place.

Check its attributes and context - depending on the section of the document (<head> or <body>), the <meta> element allows different attributes.

Learn more:

Related W3C validator issues

Still checking your large sites one page at a time?

Save time using our automated web checker. Let our crawler check your web pages on the W3C Validator.