Rocket Validator automatically scans your sites for accessibility issues using the W3C Validator,
hosted on our own servers and integrated into our web crawler.
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
<label> tags are used to label inputs in form, which need to be present and visible in the document, for example:
<label for="age">Age</label> <input id="age" />