HTML Checking for Large Sites

Rocket Validator automatically scans your sites for accessibility issues using the W3C Validator, hosted on our own servers and integrated into our web crawler.

When was the last time you validated your whole site?

Keep your sites healthy checking for A11Y/HTML issues on an automated schedule.

Stray end tag “X”.

An end tag for X has been found that does not correspond to a previous open tag. This usually happens when you close the same tag twice, for example:

<ul>
  <li>item</li>
</ul>
</ul>

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.