Programmer 
Content
1XX Informational 100 Continue 101 102 Switching Protocols Processing 2XX Success 200 201 Created 202 Accepted 203 Non-authoritative Information 204 No Content 205 206 Reset Content Partial Content 207 Multi-Status 208 226 Already Reported IM Used 3XX Redirectional 300 Multiple Choices 301 302 Moved Permanently Found 303 See Other 304 305 Not Modified 307 Use Proxy Temporary Redirect 308 Permanent Redirect 4XX Client Error 400 Bad Request 401 Unauthorized 402 403 Payment Required Forbidden 404 Not Found 405 Method Not Allowed COST Not Acceptable 407 408 Proxy Authentication Required Request Timeout 4XX Client Error Continued 409 Conflict 410 Gone 411 412 Length Required Precondition Failed 413 414 415 416 417 Payload Too Large Request-URI Too Long Unsupported Media Type Requested Range Not Satisfiable Expectation Failed I’m a teapot 418 421 Misdirected Request Unprocessable Entity 422 423 Locked 424 426 428 429 431 444 Failed Dependency Upgrade Required Precondition Required Too Many Requests Request Header Fields Too Large Connection Closed Without Response 451 499 Unavailable For Legal Reasons Client Closed Request 5XX Server Error 500 Internal Server Error 501 Not Implemented 502 503 504 Bad Gateway Service Unavailable 505 506 507 Gateway Timeout HTTP Version Not Supported Variant Also Negotiates Insufficient Storage 508 Loop Detected 510 Not Extended 511 Network Authentication Required 599 Network Connect Timeout Error