HTTP Error Codes

Click any code to trigger that HTTP response
4xx Client Errors
400
Bad Request
401
Unauthorized
402
Payment Required
403
Forbidden
404
Not Found
405
Method Not Allowed
406
Not Acceptable
407
Proxy Authentication Required
408
Request Timeout
409
Conflict
410
Gone
411
Length Required
412
Precondition Failed
413
Payload Too Large
414
URI Too Long
415
Unsupported Media Type
416
Range Not Satisfiable
417
Expectation Failed
418
I'm a teapot
421
Misdirected Request
422
Unprocessable Entity
423
Locked
424
Failed Dependency
425
Too Early
426
Upgrade Required
428
Precondition Required
429
Too Many Requests
431
Request Header Fields Too Large
451
Unavailable For Legal Reasons
5xx Server Errors
500
Internal Server Error
501
Not Implemented
502
Bad Gateway
503
Service Unavailable
504
Gateway Timeout
505
HTTP Version Not Supported
506
Variant Also Negotiates
507
Insufficient Storage
508
Loop Detected
510
Not Extended
511
Network Authentication Required