Rocket Validator automatically checks your pages on the W3C Validator.
HTML issues tagged as query.
href attribute on an element
<a> contains a character that is not allowed, and should be encoded.
Some typical examples include the pipe character
| that should be replaced by its encoded alternative
%7C , and the left square bracket
[ that needs to be encoded as
25,000 HTML checks per month. Is that enough for your site?
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