HTTP Status Code Search and Reference

Search 34 common HTTP response codes from 100 through 505 by number, English name, or English explanation.

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34 results

1001xx

Continue

The server received the initial request and the client can continue sending the body.

1011xx

Switching Protocols

The server is switching to the protocol requested by the client, such as a WebSocket upgrade.

1031xx

Early Hints

The server sends preliminary headers before the final response so resources can be preloaded.

2002xx

The request succeeded.

2012xx

Created

The request succeeded and created a new resource, commonly in response to POST.

2022xx

Accepted

The request was accepted, but processing has not finished yet.

2042xx

No Content

The request succeeded and there is no response body to return.

2062xx

Partial Content

The server returned only the requested range of a resource.

3013xx

Moved Permanently

The resource moved permanently to a new URL.

3023xx

Found

The resource is temporarily available at a different URL.

3033xx

See Other

The client should retrieve the result with GET from another URL.

3043xx

Not Modified

The cached resource has not changed and can be reused.

3073xx

Temporary Redirect

The resource is temporarily redirected while preserving the HTTP method and body.

3083xx

Permanent Redirect

The resource is permanently redirected while preserving the HTTP method and body.

4004xx

Bad Request

The server cannot understand the request because it is malformed.

4014xx

Unauthorized

Authentication credentials are missing or invalid.

4034xx

Forbidden

The server understood the request but refuses to authorize it.

4044xx

Not Found

The requested resource could not be found.

4054xx

Method Not Allowed

The resource does not support the HTTP method used by the request.

4064xx

Not Acceptable

The server cannot provide a response matching the formats requested in the Accept headers.

4084xx

Request Timeout

The client did not complete the request within the server's allowed time.

4094xx

Conflict

The request conflicts with the current state of the resource.

4104xx

Gone

The resource was permanently removed and is no longer available.

4134xx

Payload Too Large

The request body exceeds the size the server is willing to process.

4154xx

Unsupported Media Type

The server does not support the request body's media type.

4184xx

I'm a teapot

The server refuses to brew coffee because it is a teapot, an April Fools' joke status.

4224xx

Unprocessable Entity

The request syntax is valid, but semantic or validation errors prevent processing.

4294xx

Too Many Requests

The client sent too many requests within a given period and was rate limited.

5005xx

Internal Server Error

The server encountered an unexpected internal error.

5015xx

Not Implemented

The server does not support the requested functionality.

5025xx

Bad Gateway

A gateway or proxy received an invalid response from an upstream server.

5035xx

Service Unavailable

The server is temporarily unable to handle the request, often due to overload or maintenance.

5045xx

Gateway Timeout

A gateway or proxy did not receive a timely response from an upstream server.

5055xx

HTTP Version Not Supported

The server does not support the HTTP protocol version used by the request.

Key features

Includes 34 common codes across 1xx, 2xx, 3xx, 4xx, and 5xx.
Filters by code number, English name, or English description.
Groups informational, success, redirection, client-error, and server-error responses.
Switches between card and table views and copies code numbers.

How to use

Search for 404, Not Found, or a related description.
Optionally choose a 1xx–5xx category and card or table view.
Read the response meaning and copy the code number.

Examples

Interpret a response code
Look up a code from a log or browser developer tools and review its category and common meaning.
Study status-code families
Browse informational, success, redirection, client-error, and server-error groups.

Privacy

Search and filtering use the static status-code list included on the page and do not make external server requests.

Requirements

This is a concise English reference for 34 selected common codes, not the complete IANA registry. Consult current HTTP specifications for protocol implementation decisions.

Common questions

Does this request a URL to get its live HTTP status?: No. It is a searchable reference of built-in standard status codes and sends no request to an external server.
Can I search by name as well as code?: Yes. Search the status number, English status name, or localized description, and filter categories from 1xx through 5xx.