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HTTP Status Codes

「HTTP Status Codes」はコード、データと QRに使えるブラウザツールです。入力内容と結果は通常この端末内で処理され、登録は必要ありません。

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Search the code, standard name, or plain-English meaning. This is a local reference; no request is made.

Showing common HTTP status codes.

使い方

使い方

  1. Search by a code such as 404, a name such as Not Found, or a short meaning.
  2. Choose an HTTP class to narrow the reference to informational, success, redirect, client error, or server error responses.
  3. Open a result and copy the code or status line for your documentation or implementation.

A concise HTTP reference

The lookup includes commonly used standard HTTP status codes from informational responses through server errors, plus a few established WebDAV and cache-related codes. Search checks the numeric code, standard name, and plain-English meaning.

Status codes describe the response

A status code is one part of an HTTP response and does not replace a useful response body, headers, or application-level error details. Follow the semantics of the code and the method when designing a client or API.

Runs entirely in your browser

The reference data is bundled with this page. Searching, filtering, and copying do not make a network request and do not send your query anywhere.

よくある質問

あわせて知りたいこと

What is the difference between 4xx and 5xx?

4xx codes indicate that the request cannot be fulfilled because of something about the request or client context. 5xx codes indicate that the server is aware of an error or cannot fulfill an otherwise valid request.

Which status should I use after creating a resource?

201 Created is the usual success status when a request creates a new resource. Include a Location header when it is useful to identify the new resource.

Does this list include every registered status code?

No. It focuses on common HTTP status codes and a small set of established extensions that are useful in web development.

Does searching contact a server?

No. The code list and all interactions run locally in your browser.