404

[snopes]

Comment: I know this is false...but it is a common mith that the HTTP 404
error code came from the room 404 @ CERN. I think you should have on ur
site somewhere. Searching for 404, HTTP 404, and HTTP 404 room resulted
in nothing.

[DarkDan]

I guess snopes is the only page on the internet? I found this. Basically, there is no room 404 and the different digits mean certain things.

[Eddylizard]

Sorry to disappoint you all, but there is no Room 404 in CERN - it simply doesn't exist,

The myth is beautifully ironic though, in that if you got to CERN and try to find room 404 you won't be able to locate it.

[Troberg]

No, it's just a serial number on the response messages. The first digit is the type of message (with 4 being client errors), the rest is just a serial number.

http://en.wikipedia.org/wiki/Http_error_codes

[NeeCD]

That's what they want you to believe...