Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
Attributes for HTML elements must be defined like
name="value". A common issue is missing the
=, or repeating the
" like in these examples:
<!-- Missing equal sign --> <p name "value"></p> <!-- Repeated quotes --> <p name="value""></p>
Related W3C validator issues
Attributes in HTML elements need to be separated by space, in this example the first line is invalid and the second one is valid:
<a href="page.php"class="big">link</a> <a href="page.php" class="big">link</a>
A < character has been found when an attribute was expected instead. Check the syntax of the affected tag, it’s probably malformed and a < character inside has been interpreted as an attribute.
For example, this code might cause this issue:
<!-- Malformed img tag --> <img src="photo.jpg" alt="smiling cat" < /> <!-- Fixed img tag --> <img src="photo.jpg" alt="smiling cat" />
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