Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as head.
<head> section of an HTML document contains metadata about the document, and as a minimum it must include a
<title> tag defining the document title.
Common causes for this issue are forgetting to define the
<title>, or duplicated
<head> sections where one of them does not include the title.
Here’s an example of a minimal HTML document including the title:
<!DOCTYPE html> <html> <head> <title>Don't panic! This is the title</title> </head> <body> <p></p> </body> </html>
<meta> tags, used for defining metadata about HTML documents, must appear within the
<head>...</head> section, but it has been found out of place. Check the document structure to ensure there are no
<meta> tags outside the head section.
A common cause of this issue is having a duplicated, out of place
<head>...</head> section. Ensure that this section appears in its proper place and is the only container for
<head> start tag has been found in an unexpected place in the document structure. Check that the
<head> section appears before the
<body> section, and that is not duplicated.
<head> section of an HTML document is the container of metadata about the document, and must appear before the
<body> section. A common cause of this issue is duplicated
Here is an example of a minimal HTML document structure:
<!DOCTYPE html> <html> <head> <title>Test</title> </head> <body> <p></p> </body> </html>
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