HTML Checking for Large Sites
Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as encoding.
The src attribute on an <img> tag is not allowed to contain space characters. You should replace them with “%20“.
An HTML tag could not be parsed, most probably because of a typo.
A character has been found in the document that is not allowed in the charset encoding being used.
The document has been declared to use a windows-1251 charset but the actual contents seems to be utf-8. You should update the charset to that like in this example:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">The document could not be properly parsed due to malformed characters. Check the document encoding.
Read about Normalization in HTML and CSS.
Read about Normalization in HTML and CSS.
50,000 Accessibility and HTML checks per month. Fully automated.
Let our automated scanner check your large sites using Axe Core and W3C Validator.