HTTP Status Code Lookup

100 Continue
101 Switching Protocols
200 OK
201 Created
202 Accepted
204 No Content
301 Moved Permanently
302 Found
304 Not Modified
307 Temporary Redirect
308 Permanent Redirect
400 Bad Request
401 Unauthorized
403 Forbidden
404 Not Found
405 Method Not Allowed
408 Request Timeout
409 Conflict
410 Gone
418 I'm a teapot
429 Too Many Requests
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Timeout