HTTP Status Code Checker

Search and understand common HTTP response status codes quickly.

Status Lookup
Type a code, category, or keyword to filter the list.
CodeMessageCategory
200OKSuccess
201CreatedSuccess
204No ContentSuccess
301Moved PermanentlyRedirect
302FoundRedirect
304Not ModifiedRedirect
400Bad RequestClient Error
401UnauthorizedClient Error
403ForbiddenClient Error
404Not FoundClient Error
408Request TimeoutClient Error
409ConflictClient Error
429Too Many RequestsClient Error
500Internal Server ErrorServer Error
502Bad GatewayServer Error
503Service UnavailableServer Error
504Gateway TimeoutServer Error

Frequently Asked Questions

What does HTTP 301 mean?

301 Moved Permanently: the URL has permanently moved to a new location. Browsers and search engines follow and update the new URL.

What causes a 404 error?

404 Not Found: the server cannot find the requested URL. Common causes: deleted pages, mistyped paths, or incorrect internal links.

What is the difference between 301 and 302?

301 is permanent (SEO equity passes). 302 is temporary (SEO equity stays at original URL). Use 301 for all permanent changes.

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