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HTTP Protocol, Hypertext Transfer Protocol
Emergency sign with 404 error code. Concept of online internet web. 404 sorry, page not found is HTTP status code error that indicates server could not find what was requested.
There is sticky note with the word HTTP. It is as an eye-catching image.
HTTP Status code on a laptop screen - 400, Bad Request
error 407 acronym. Although the HTTP standard specifies unauthorized, semantically this response means unauthenticated.

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