HTTP Status Code List

1xx Informational response

100 Continue

101 Switching Protocols

102 Processing (WebDAV; RFC 2518)

103 Early Hints (RFC 8297)

2xx Success

200 OK

201 Created

202 Accepted

203 Non-Authoritative Information (since HTTP/1.1)

204 No Content

205 Reset Content

206 Partial Content (RFC 7233)

207 Multi-Status (WebDAV; RFC 4918)

208 Already Reported (WebDAV; RFC 5842)

226 IM Used (RFC 3229)

3xx Redirection

300 Multiple Choices

301 Moved Permanently

302 Found (Previously "Moved temporarily")

303 See Other (since HTTP/1.1)

304 Not Modified (RFC 7232)

305 Use Proxy (since HTTP/1.1)

306 Switch Proxy

307 Temporary Redirect (since HTTP/1.1)

308 Permanent Redirect (RFC 7538)

4xx Client errors

400 Bad Request

401 Unauthorized (RFC 7235)

402 Payment Required

403 Forbidden

404 Not Found

405 Method Not Allowed

406 Not Acceptable

407 Proxy Authentication Required (RFC 7235)

408 Request Timeout

409 Conflict

410 Gone

411 Length Required

412 Precondition Failed (RFC 7232)

413 Payload Too Large (RFC 7231)

414 URI Too Long (RFC 7231)

415 Unsupported Media Type

416 Range Not Satisfiable (RFC 7233)

417 Expectation Failed

418 I'm a teapot (RFC 2324, RFC 7168)

421 Misdirected Request (RFC 7540)

422 Unprocessable Entity (WebDAV; RFC 4918)

423 Locked (WebDAV; RFC 4918)

424 Failed Dependency (WebDAV; RFC 4918)

426 Upgrade Required

428 Precondition Required (RFC 6585)

429 Too Many Requests (RFC 6585)

431 Request Header Fields Too Large (RFC 6585)

451 Unavailable For Legal Reasons (RFC 7725)

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 (RFC 2295)

507 Insufficient Storage (WebDAV; RFC 4918)

508 Loop Detected (WebDAV; RFC 5842)

510 Not Extended (RFC 2774)

511 Network Authentication Required (RFC 6585)

Unofficial codes

103 Checkpoint

218 This is fine (Apache Web Server)

419 Page Expired (Laravel Framework)

420 Method Failure (Spring Framework)

420 Enhance Your Calm (Twitter)

450 Blocked by Windows Parental Controls (Microsoft)

498 Invalid Token (Esri)

499 Token Required (Esri)

509 Bandwidth Limit Exceeded (Apache Web Server/cPanel)

526 Invalid SSL Certificate

530 Site is frozen

598 (Informal convention) Network read timeout error

Internet Information Services

440 Login Time-out

449 Retry With

451 Redirect

444 No Response

494 Request header too large

495 SSL Certificate Error

496 SSL Certificate Required

497 HTTP Request Sent to HTTPS Port

499 Client Closed Request

520 Unknown Error

521 Web Server Is Down

522 Connection Timed Out

523 Origin Is Unreachable

524 A Timeout Occurred

525 SSL Handshake Failed

526 Invalid SSL Certificate

527 Railgun Error

530 Origin DNS Error