HTTP status code lookup
Look up what an HTTP status code means by number, class such as 5xx, or keyword.
🔒 Everything runs in your browser. Nothing you choose or type is uploaded. How to verify
How to use it
- Type a code like 404, a class like 5xx or a word like redirect.
- Read the matching codes.
- Copy the explanation you need.
Handy for
Debugging APIs, websites and redirects.
Good to know
Codes are grouped as 1xx information, 2xx success, 3xx redirection, 4xx client errors and 5xx server errors.
Privacy: where the work happens
Everything you enter or choose is processed by JavaScript in your browser and never sent anywhere. Only the page code, and any library this tool needs, is downloaded from cdnjs or jsDelivr.
Questions
What is the difference between 301 and 302?
301 is a permanent move. 302 is temporary, so search engines keep the old URL.
What do 4xx and 5xx mean?
4xx errors come from the request. 5xx errors come from the server.