code name class temporary rfc references 100 Continue Informational false 9110 RFC 9110, Section 15.2.1 101 Switching Protocols Informational false 9110 RFC 9110, Section 15.2.2 102 Processing Informational false 2518 RFC 2518 103 Early Hints Informational false 8297 RFC 8297 104 Upload Resumption Supported (TEMPORARY - registered 2024-11-13, extension registered 2025-09-15, expires 2026-11-13) Informational true draft-ietf-httpbis-resumable-upload-05 200 OK Successful false 9110 RFC 9110, Section 15.3.1 201 Created Successful false 9110 RFC 9110, Section 15.3.2 202 Accepted Successful false 9110 RFC 9110, Section 15.3.3 203 Non-Authoritative Information Successful false 9110 RFC 9110, Section 15.3.4 204 No Content Successful false 9110 RFC 9110, Section 15.3.5 205 Reset Content Successful false 9110 RFC 9110, Section 15.3.6 206 Partial Content Successful false 9110 RFC 9110, Section 15.3.7 207 Multi-Status Successful false 4918 RFC 4918 208 Already Reported Successful false 5842 RFC 5842 226 IM Used Successful false 3229 RFC 3229 300 Multiple Choices Redirection false 9110 RFC 9110, Section 15.4.1 301 Moved Permanently Redirection false 9110 RFC 9110, Section 15.4.2 302 Found Redirection false 9110 RFC 9110, Section 15.4.3 303 See Other Redirection false 9110 RFC 9110, Section 15.4.4 304 Not Modified Redirection false 9110 RFC 9110, Section 15.4.5 305 Use Proxy Redirection false 9110 RFC 9110, Section 15.4.6 306 (Unused) Redirection false 9110 RFC 9110, Section 15.4.7 307 Temporary Redirect Redirection true 9110 RFC 9110, Section 15.4.8 308 Permanent Redirect Redirection false 9110 RFC 9110, Section 15.4.9 400 Bad Request Client error false 9110 RFC 9110, Section 15.5.1 401 Unauthorized Client error false 9110 RFC 9110, Section 15.5.2 402 Payment Required Client error false 9110 RFC 9110, Section 15.5.3 403 Forbidden Client error false 9110 RFC 9110, Section 15.5.4 404 Not Found Client error false 9110 RFC 9110, Section 15.5.5 405 Method Not Allowed Client error false 9110 RFC 9110, Section 15.5.6 406 Not Acceptable Client error false 9110 RFC 9110, Section 15.5.7 407 Proxy Authentication Required Client error false 9110 RFC 9110, Section 15.5.8 408 Request Timeout Client error false 9110 RFC 9110, Section 15.5.9 409 Conflict Client error false 9110 RFC 9110, Section 15.5.10 410 Gone Client error false 9110 RFC 9110, Section 15.5.11 411 Length Required Client error false 9110 RFC 9110, Section 15.5.12 412 Precondition Failed Client error false 9110 RFC 9110, Section 15.5.13 413 Content Too Large Client error false 9110 RFC 9110, Section 15.5.14 414 URI Too Long Client error false 9110 RFC 9110, Section 15.5.15 415 Unsupported Media Type Client error false 9110 RFC 9110, Section 15.5.16 416 Range Not Satisfiable Client error false 9110 RFC 9110, Section 15.5.17 417 Expectation Failed Client error false 9110 RFC 9110, Section 15.5.18 418 (Unused) Client error false 9110 RFC 9110, Section 15.5.19 421 Misdirected Request Client error false 9110 RFC 9110, Section 15.5.20 422 Unprocessable Content Client error false 9110 RFC 9110, Section 15.5.21 423 Locked Client error false 4918 RFC 4918 424 Failed Dependency Client error false 4918 RFC 4918 425 Too Early Client error false 8470 RFC 8470 426 Upgrade Required Client error false 9110 RFC 9110, Section 15.5.22 428 Precondition Required Client error false 6585 RFC 6585 429 Too Many Requests Client error false 6585 RFC 6585 431 Request Header Fields Too Large Client error false 6585 RFC 6585 451 Unavailable For Legal Reasons Client error false 7725 RFC 7725 500 Internal Server Error Server error false 9110 RFC 9110, Section 15.6.1 501 Not Implemented Server error false 9110 RFC 9110, Section 15.6.2 502 Bad Gateway Server error false 9110 RFC 9110, Section 15.6.3 503 Service Unavailable Server error false 9110 RFC 9110, Section 15.6.4 504 Gateway Timeout Server error false 9110 RFC 9110, Section 15.6.5 505 HTTP Version Not Supported Server error false 9110 RFC 9110, Section 15.6.6 506 Variant Also Negotiates Server error false 2295 RFC 2295 507 Insufficient Storage Server error false 4918 RFC 4918 508 Loop Detected Server error false 5842 RFC 5842 510 Not Extended (OBSOLETED) Server error false 2774 RFC 2774 511 Network Authentication Required Server error false 6585 RFC 6585