For pages that are vulnerable to the trick, a malicious hacker can craft a link that replaces some variable in the page with anything that the hacker chooses.

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Including a "dead" variable is important as it is a vital link in the food chain.

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The single strongest variable in Google rankings is the number and authority of sites that link to a posting.

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There's no telling when or if you'll actually be able to pick up one of these variable temperature shells, but you can add your name to the mailing list at the more coverage link.

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