HTML Checking for Large Sites
Rocket Validator automatically checks your pages on the W3C Validator.
HTML issues tagged as hyphens.
Malformed comment syntax has been found, check out the affected comment.
HTML comments are helpful to leave notes about the code right next to it. To create a comment, it must start with <!-- and end with -->, as in this example:
<!-- Good comment -->
<!--
Comments can
be multi-line
-->
A common cause for a malformed comment is using too many hyphens (-) as in this example:
<!-- Wrong comment --->
When was the last time you validated your whole site?
Keep your sites healthy checking for A11Y/HTML issues on an automated schedule.