HTTP Status Codes Reference - Complete List & Descriptions
Search and explore all HTTP status codes from 100 to 511 with names and detailed descriptions
Developer Tools
Tool
How to Use
1Browse the full list or use the search box to filter by code number or name
2Click any status code to see its full description
3Use the color-coded badges to quickly identify code categories
Frequently Asked Questions
1xx (Informational), 2xx (Success), 3xx (Redirection), 4xx (Client Error), 5xx (Server Error). Each category tells you what happened with the request at a glance.
404 Not Found is the most commonly encountered error, meaning the server could not find the requested resource. 500 Internal Server Error is the most common server-side failure.
301 Moved Permanently tells browsers and search engines the resource has moved to a new URL forever. 302 Found (temporary redirect) means the move is temporary and the original URL may be used again.