HTTP Status Code Checker
Check HTTP status codes for multiple URLs at once. Detects 200 OK, 301/302 redirects, 404 Not Found, 500 errors and all other codes. See final URL after redirects and response time.
HTTP Status Code Reference
2xx — Success
200 OK, 201 Created, 204 No Content
3xx — Redirect
301 Moved, 302 Found, 307 Temporary, 308 Permanent
4xx — Client Error
400 Bad Request, 401 Unauthorized, 403 Forbidden, 404 Not Found
5xx — Server Error
500 Internal Server Error, 502 Bad Gateway, 503 Service Unavailable
What does HTTP status code 200 mean?+
HTTP 200 OK means the request was successful. The server found the resource and returned it. This is the normal response for most web pages, API calls and file downloads.
What is the difference between 301 and 302 redirects?+
A 301 redirect is permanent — search engines transfer the original page's ranking signals to the new URL. A 302 redirect is temporary — search engines keep the original URL indexed. Use 301 for permanent moves and 302 for temporary redirects like A/B testing.
What causes a 404 error?+
A 404 Not Found error means the URL does not exist on the server. Common causes: the page was deleted, the URL was changed without a redirect, or the URL was typed incorrectly. Check our Redirect Checker to see if a redirect is configured.
What does a 503 error mean?+
503 Service Unavailable means the server cannot handle the request — usually due to overload, maintenance or a crashed application. Unlike 500, a 503 usually implies a temporary condition. Retry-After headers sometimes tell you when to try again.