HTML Checking for Large Sites
Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as novalidate.
There is no attribute validate on the <form> element. Perhaps you meant novalidate?
If the novalidate attribute is present on a <form>, indicates that the form is not to be validated during submission.
For example, while this form has a required attribute on its input, it won’t be enforced because form validation has been disabled using novalidate:
<form novalidate>
<label>City: <input required name="city"></label>
<input type="submit" />
</form>25,000 HTML checks per month. Fully automated.
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