Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as video.
controlslist attribute on the
<video> element is experimental, and not yet valid in the current HTML5 standard, so you should use it with caution as it may not be supported by all browsers.
25,000 HTML checks per month. Fully automated.
Save time using our automated web checker. Let our crawler check your web pages on the W3C Validator.