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Network
Look up what an HTTP status code means, searchable by number or keyword.
Runs entirely in your browser, nothing is uploaded200 OK
The request succeeded.
201 Created
The request succeeded and a new resource was created.
202 Accepted
The request was accepted but hasn’t finished processing yet.
204 No Content
The request succeeded but there is no body to return.
301 Moved Permanently
The resource has a new permanent URL; future requests should use it.
302 Found
The resource is temporarily at a different URL.
304 Not Modified
The cached version is still valid; no body is returned.
307 Temporary Redirect
Like 302, but the method and body must be repeated unchanged on the redirect.
308 Permanent Redirect
Like 301, but the method and body must be repeated unchanged on the redirect.
400 Bad Request
The server couldn’t understand the request due to malformed syntax or invalid data.
401 Unauthorized
Authentication is required and either missing or invalid.
403 Forbidden
The server understood the request but refuses to authorize it.
404 Not Found
The server can’t find the requested resource.
405 Method Not Allowed
The HTTP method used isn’t supported for this resource.
408 Request Timeout
The server timed out waiting for the request.
409 Conflict
The request conflicts with the current state of the resource.
410 Gone
The resource is permanently gone and no forwarding address is known.
413 Payload Too Large
The request body is larger than the server is willing to process.
415 Unsupported Media Type
The request body’s format isn’t supported.
418 I'm a teapot
An April Fools’ joke from RFC 2324, occasionally used as an easter egg.
429 Too Many Requests
The client has sent too many requests in a given time window (rate limiting).
500 Internal Server Error
A generic error indicating the server encountered an unexpected condition.
501 Not Implemented
The server doesn’t support the functionality required to fulfill the request.
502 Bad Gateway
A server acting as a gateway received an invalid response from an upstream server.
503 Service Unavailable
The server is temporarily unable to handle the request, often due to overload or maintenance.
504 Gateway Timeout
A server acting as a gateway didn’t receive a timely response from an upstream server.