HTML Checking for Large Sites

Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.

HTML issues tagged as content-type.

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

charset
meta
http-equiv
content-type
utf-8

In order to define the charset encoding of an HTML document, both of these options are valid, but only one of them must appear in the document:

<!-- This is the preferred way -->
<meta charset="UTF-8">

<!-- This is the older way, also valid -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">

12,500 Accessibility and HTML checks per week. Fully automated.

Let our automated scanner check your large sites using Axe Core and W3C Validator.

Rocket Validator Pro
12,500 A11Y / HTML checks, $24/week