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- Code, Content, and Presentation
-- PHP Server Side Scripting
---- Allowing Unwanted Query String Variables

jdMorgan - 10:04 pm on Jan 30, 2010 (gmt 0)


Any client request for any non-canonical URL -- including the query string appended to that URL, should be 301-redirected to the canonical URL.

If you do not validate URLs and query strings, you're allowing *anyone* to create a duplicate-content issue for your site -- whether accidentally or intentionally.

Jim

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