HTTP 404 Not Found — Meaning

404 Not Found means the server cannot find the requested resource (or refuses to confirm it exists). Used when a resource truly doesn't exist, was deleted, or as an SPA fallback.

Key facts

Frequently asked questions

What does 404 mean?

The server cannot find the requested resource.

Is 404 a client or server error?

It is a 4xx client error — the requested URL does not resolve to a resource.

Related pages

• HTTP 200 OK
• HTTP 301 Moved Permanently
• HTTP 401 Unauthorized
• HTTP 403 Forbidden
• HTTP 429 Too Many Requests
• HTTP 500 Internal Server Error
• HTTP 502 Bad Gateway
• HTTP 503 Service Unavailable

HTTP 404 Not Found is part of DevRef Hub on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.

Advertise

Part of GOAT Lab — 26 free, browser-based science, engineering and developer tools. No sign-up.