HTTP Status Code Lookup
Search by code (404), by name (Not Found) or by category (client error) to see the standard meaning and a short explanation.
HTTP Status Code LookupRuns in your browser
Your input stays in your browser and is not sent to a server by this page.
About this tool
Status codes are defined by the HTTP standards (RFC 9110 and related RFCs). This list covers the common registered codes, not every code that exists.