HTTP Status Codes
Complete HTTP 1xx-5xx codes reference with bilingual descriptions. Real-time search. No sign-up.
HTTP Status Codes
Complete reference for all standard HTTP status codes
Continue
Continuar
The server has received the request headers and the client should proceed to send the request body.
Switching Protocols
Cambio de Protocolo
The requester has asked the server to switch protocols and the server has agreed to do so.
Processing
Procesando
This code indicates that the server has received and is processing the request, but no response is available yet.
Early Hints
Sugerencias Anticipadas
Used to return some response headers before final HTTP message, allowing the user agent to start preloading resources.
OK
OK
The request has succeeded. The meaning of success depends on the HTTP method used.
Created
Creado
The request has been fulfilled, resulting in the creation of a new resource.
Accepted
Aceptado
The request has been accepted for processing, but the processing has not been completed.
Non-Authoritative Information
Información No Autorizada
The server is a transforming proxy that returned a modified version of the origin server's 200 OK response.
No Content
Sin Contenido
The server successfully processed the request, and is not returning any content.
Reset Content
Restablecer Contenido
The server successfully processed the request, asks that the requester reset its document view.
Partial Content
Contenido Parcial
The server is delivering only part of the resource due to a range header sent by the client.
Multi-Status
Multi-Estado
The message body that follows is by default an XML message and can contain a number of separate response codes.
Already Reported
Ya Reportado
The members of a DAV binding have already been enumerated in a preceding part of the response.
IM Used
Instancia IM Usada
The server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations.
Multiple Choices
Múltiples Opciones
Indicates multiple options for the resource from which the client may choose.
Moved Permanently
Movido Permanentemente
This and all future requests should be directed to the given URI. Permanent redirect.
Found
Encontrado
Tells the client to look at another URL. Temporary redirect.
See Other
Ver Otro
The response to the request can be found under another URI using the GET method.
Not Modified
No Modificado
Indicates that the resource has not been modified since the version specified by the request headers.
Temporary Redirect
Redirección Temporal
The request should be repeated with another URI, but future requests should still use the original URI.
Permanent Redirect
Redirección Permanente
The request and all future requests should be repeated using another URI. The method must not change.
Bad Request
Solicitud Incorrecta
The server cannot or will not process the request due to an apparent client error.
Unauthorized
No Autorizado
Authentication is required and has failed or has not yet been provided.
Payment Required
Pago Requerido
Reserved for future use. The original intention was for use with digital payment systems.
Forbidden
Prohibido
The request was valid, but the server is refusing action. The user might not have the necessary permissions.
Not Found
No Encontrado
The requested resource could not be found but may be available in the future.
Method Not Allowed
Método No Permitido
A request method is not supported for the requested resource.
Not Acceptable
No Aceptable
The requested resource is capable of generating only content not acceptable according to the Accept headers sent in the request.
Proxy Authentication Required
Autenticación de Proxy Requerida
The client must first authenticate itself with the proxy.
Request Timeout
Tiempo de Solicitud Agotado
The server timed out waiting for the request. The client did not produce a request within the time that the server was prepared to wait.
Conflict
Conflicto
Indicates that the request could not be processed because of conflict in the current state of the resource.
Gone
Desaparecido
Indicates that the resource requested is no longer available and will not be available again. Unlike 404, this is permanent.
Length Required
Longitud Requerida
The request did not specify the length of its content, which is required by the requested resource.
Precondition Failed
Condición Previa Fallida
The server does not meet one of the preconditions that the requester put on the request header fields.
Content Too Large
Contenido Demasiado Grande
The request is larger than the server is willing or able to process.
URI Too Long
URI Demasiado Largo
The URI provided was too long for the server to process.
Unsupported Media Type
Tipo de Medio No Soportado
The request entity has a media type which the server or resource does not support.
Range Not Satisfiable
Rango No Satisfactorio
The client has asked for a portion of the file, but the server cannot supply that portion.
Expectation Failed
Expectativa Fallida
The server cannot meet the requirements of the Expect request-header field.
I'm a Teapot
Soy una Tetera
The server refuses the attempt to brew coffee with a teapot. April Fools' joke from 1998 (RFC 2324).
Misdirected Request
Solicitud Mal Dirigida
The request was directed at a server that is not able to produce a response.
Unprocessable Content
Contenido No Procesable
The request was well-formed but was unable to be followed due to semantic errors.
Locked
Bloqueado
The resource that is being accessed is locked.
Failed Dependency
Dependencia Fallida
The request failed because it depended on another request and that request failed.
Too Early
Demasiado Temprano
Indicates that the server is unwilling to risk processing a request that might be replayed.
Upgrade Required
Actualización Requerida
The client should switch to a different protocol such as TLS/1.0.
Precondition Required
Condición Previa Requerida
The origin server requires the request to be conditional to prevent the 'lost update' problem.
Too Many Requests
Demasiadas Solicitudes
The user has sent too many requests in a given amount of time. Rate limiting.
Request Header Fields Too Large
Campos de Encabezado Demasiado Grandes
The server is unwilling to process the request because either an individual header field is too large.
Unavailable For Legal Reasons
No Disponible Por Razones Legales
The server operator has received a legal demand to deny access to a resource or to a set of resources.
Internal Server Error
Error Interno del Servidor
A generic error message, given when an unexpected condition was encountered and no more specific message is suitable.
Not Implemented
No Implementado
The server either does not recognize the request method, or it lacks the ability to fulfil the request.
Bad Gateway
Puerta de Enlace Incorrecta
The server was acting as a gateway or proxy and received an invalid response from the upstream server.
Service Unavailable
Servicio No Disponible
The server cannot handle the request because it is overloaded or down for maintenance.
Gateway Timeout
Tiempo de Espera de Puerta de Enlace
The server was acting as a gateway or proxy and did not receive a timely response from an upstream server.
HTTP Version Not Supported
Versión HTTP No Soportada
The server does not support the HTTP protocol version used in the request.
Variant Also Negotiates
Variante También Negocia
Transparent content negotiation for the request results in a circular reference.
Insufficient Storage
Almacenamiento Insuficiente
The server is unable to store the representation needed to complete the request.
Loop Detected
Bucle Detectado
The server detected an infinite loop while processing the request.
Not Extended
No Extendido
Further extensions to the request are required for the server to fulfil it.
Network Authentication Required
Autenticación de Red Requerida
The client needs to authenticate to gain network access. Intended for use by intercepting proxies.
Built by
Miguel Ángel Colorado Marin
Built by
Miguel Ángel Colorado Marin
Full-Stack Developer · Guadalajara, España
I develop web apps, digital tools and full projects — from design to deployment.
How to use the HTTP status codes reference?
- 1
Search by code number or name
Enter the code number (e.g., 404) or a keyword (e.g., 'not found') in the search box. Results filter in real time as you type, showing all codes that match your query.
- 2
Filter by category
Use the category buttons to view only codes from a specific family: 1xx Informational, 2xx Success, 3xx Redirection, 4xx Client Error or 5xx Server Error. This lets you focus on the range you need without distractions.
- 3
Click Copy to copy the code
Each entry has a copy button. Clicking it automatically copies the HTTP status code number to your clipboard with visual confirmation, ready to paste into your documentation, code or team messages.
- 4
Use the information in your API docs
Descriptions are available in both Spanish and English. Use them as a reference to document your endpoints, implement error handling in your application or understand responses from third-party APIs.
Frequently asked questions
What is a 404 error?
The 404 Not Found code indicates that the server could not find the requested resource. It is one of the best-known errors on the web and occurs when a URL does not exist or has been deleted. It does not imply a server failure — the resource is simply not available at that path.
What does a 200 status code mean?
The 200 OK code is the standard success response. It indicates that the request has been processed correctly and the server is returning the requested resource. It is the most common response in REST APIs when a GET, POST, PUT or DELETE operation completes without errors.
What is the difference between 301 and 302?
The 301 Moved Permanently code indicates that the resource has permanently moved to a new URL. Search engines update their indexes with the new address. The 302 Found code is a temporary redirect: the resource is temporarily at another URL but may return. For SEO, use 301 for permanent redirects.
What is the difference between 401 and 403?
The 401 Unauthorized code means the client is not authenticated: they have not provided valid credentials or have not logged in. The 403 Forbidden code means the server understands the request but refuses to process it: the user is authenticated but does not have sufficient permissions to access the resource.
What does a 500 error mean?
The 500 Internal Server Error is a generic server-side error. It indicates that something has gone wrong on the server but it cannot be more specific about the cause. It differs from 4xx errors, which are the client's fault. When you receive a 500 from your API, check the server logs to diagnose the problem.
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