HTTP status code reference
Search bundled IANA HTTP status codes, classes and registry descriptions locally.
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Result
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How to use
Enter a code from 100 to 599, a class such as 4xx, or an English registry description; blank shows all entries. The list is bundled from the IANA registry updated 2025-09-15 and is not a live query. Unassigned ranges and temporary or obsolete notes are retained as registry data, including stated expiry dates. Registry descriptions remain in English.