HTML Checking for Large Sites
Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as matching.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Quote characters used for attributes can use either single quotes (') or double quotes ("), and they must be properly matched, for example:
A common cause for this issue is forgetting to use the equal sign (=), so the HTML parser wrongly believes the quote forms part of the attribute name, for example:
<p class "news">this is wrong</p>
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