Access: [13.2.1.3]: Metadata missing (redirect/auto-refresh)
(Priority 2)

Cause:

Do not use the metadata element to refresh or redirect web pages automatically. Use metadata to describe or provide specific information about individual web documents. Metadata often includes a list of keywords enabling search engines to conduct a more accurate and refined search. It can also contain content ratings, author information, site maps, stream channel definitions, a document's primary language, and digital library collections.

Testfile:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
	"http://www.w3.org/TR/REC-html40/loose.dtd">
<html lang="en">
<head>
<metahttp-equiv="refresh" content="http://www.foo.com/bar.html" />
</head>
<body>
</body>
</html>

References:

W3C WAI: http://www.w3.org/WAI//
HTML Techniques for WAI 1.0: http://www.w3.org/TR/WCAG10-HTML-TECHS/