WEB1042 - The page is not well-formed

Expression Studio 4.0

Each page should use well-formed HTML or XHTML.


The SEO Checker will not analyze a page unless it is well-formed. Consider correcting the page source before running the SEO Checker again.


The SEO Checker relies on the structure of well-formed HTML or XHTML to accurately perform its checks. If a page is not well-formed, the SEO Checker will return a large number of false-positive results.

For more information about well-formed markup, see Edit XML files.

See also

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