HTML Checking for Large Sites
Rocket Validator automatically checks your pages on the W3C Validator.
HTML issues tagged as input type.
The boolean required
attribute can only be used with certain types of inputs. Check the input type is one of the allowed.
The required
attribute, if present, indicates that the user must specify a value for the input before the owning form can be submitted.
Learn more:
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.