Codes d’état HTTP

Liste consultable des codes d’état HTTP de 100 à 511 avec une brève explication. Découvrez ce que signifient 404, 403, 502 ou 429.

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54 résultats

CodeNomDescription
100 ContinueThe server received the request headers; the client should send the body.
101 Switching ProtocolsThe server agrees to switch protocol, for example to WebSocket.
102 ProcessingWebDAV: the server is still processing the request.
103 Early HintsLets the browser preload resources while the server prepares the response.
200 OKThe request succeeded.
201 CreatedThe request succeeded and a new resource was created.
202 AcceptedThe request was accepted but is not processed yet.
203 Non-Authoritative InformationReturned by a proxy with modified content.
204 No ContentSuccess, with no body in the response.
205 Reset ContentSuccess; the client should reset the document view.
206 Partial ContentOnly part of the resource is returned (range request).
207 Multi-StatusWebDAV: multiple status codes for multiple operations.
301 Moved PermanentlyThe resource has a new permanent URL. SEO value is passed on.
302 FoundTemporary redirect. The original URL stays valid.
303 See OtherRedirect to another URL using GET, typically after a POST.
304 Not ModifiedThe cached version is still valid.
307 Temporary RedirectTemporary redirect that keeps the HTTP method.
308 Permanent RedirectPermanent redirect that keeps the HTTP method.
400 Bad RequestThe server cannot process the request due to a client error such as bad syntax.
401 UnauthorizedAuthentication is required or has failed.
402 Payment RequiredReserved for future use; some APIs use it for billing limits.
403 ForbiddenThe server understood the request but refuses to authorize it.
404 Not FoundThe resource does not exist at this URL.
405 Method Not AllowedThe HTTP method is not supported for this resource.
406 Not AcceptableNo representation matches the Accept headers.
407 Proxy Authentication RequiredThe client must authenticate with the proxy first.
408 Request TimeoutThe server timed out waiting for the request.
409 ConflictThe request conflicts with the current state of the resource.
410 GoneThe resource was permanently removed.
411 Length RequiredThe Content-Length header is required.
412 Precondition FailedA precondition in the request headers was not met.
413 Content Too LargeThe request body is larger than the server allows.
414 URI Too LongThe URL is longer than the server will interpret.
415 Unsupported Media TypeThe request body format is not supported.
416 Range Not SatisfiableThe requested range cannot be served.
418 I'm a teapotApril Fools joke from RFC 2324. Sometimes used as an easter egg.
421 Misdirected RequestThe request was sent to a server that cannot produce a response.
422 Unprocessable ContentSyntax is valid but the content has semantic errors (common for validation).
423 LockedWebDAV: the resource is locked.
425 Too EarlyThe server is unwilling to risk processing a replayable request.
426 Upgrade RequiredThe client must switch to a different protocol.
428 Precondition RequiredThe server requires the request to be conditional.
429 Too Many RequestsRate limit exceeded. Check the Retry-After header.
431 Request Header Fields Too LargeThe headers are too large.
451 Unavailable For Legal ReasonsAccess is denied for legal reasons.
500 Internal Server ErrorA generic error: something went wrong on the server.
501 Not ImplementedThe server does not support the requested functionality.
502 Bad GatewayA gateway or proxy received an invalid response from upstream.
503 Service UnavailableThe server is overloaded or down for maintenance.
504 Gateway TimeoutA gateway or proxy timed out waiting for the upstream server.
505 HTTP Version Not SupportedThe HTTP version is not supported.
507 Insufficient StorageWebDAV: the server cannot store the representation.
508 Loop DetectedWebDAV: an infinite loop was detected.
511 Network Authentication RequiredThe client must authenticate to gain network access (captive portals).

Les descriptions de cette référence sont pour l’instant en anglais.

Explication

Recherchez par code ou mot-clé, ou filtrez par classe : 1xx informations, 2xx succès, 3xx redirections, 4xx erreurs client et 5xx erreurs serveur.

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Questions fréquentes

Quelle différence entre 401 et 403 ?

401 signifie que vous n’êtes pas authentifié (identifiants absents ou invalides). 403 signifie que vous êtes authentifié mais n’avez pas le droit d’accéder à la ressource.

Et ensuite ?

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