404 compliant
The Jargon File's Guide to Hacker Slang:
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404 compliant
The status of a website which has been completely removed, usually by the administrators of the hosting site as a result of net abuse by the website operators. The term is a tongue-in-cheek reference to the standard “301 compliant” Murkowski Bill disclaimer used by spammers. See also: spam, spamvertize.
