HTTP status
Every standard HTTP status code, searchable, with what it means and when it is the right one to send.
Digits search by code prefix: 4 or 4xx narrows to client errors, 41 gives 410-418, a whole code opens its entry. Anything else matches names, descriptions and specs, in any word order. Click a row to copy it.
The confusion is rarely about 404. It is 401 against 403, 301 against 308, and whether a client that should slow down gets 429 or 503. Choosing wrong is not fatal but it does mislead everyone downstream, including the caches and clients that treat these codes as instructions.
Search by number or by phrase and each code comes with its category, its meaning, and a note on the distinctions that actually catch people out.
What people open it for
- Choosing between 401 and 403 for an authorisation failure
- Deciding whether a redirect should be permanent and whether it may change method
- Looking up an unfamiliar code from a log or an API response
In the terminal
http 429
Every utility is also a command in the desktop's shell.