// REFERENCE
306 (Unused)
Class: 3xx
A reserved and unused code. It was defined in an old draft («Switch Proxy») but never standardized; it's kept reserved so it isn't reused.
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301
301 Moved Permanently 302
302 Found (temporary redirect) 304
304 Not Modified 307
307 Temporary Redirect 308
308 Permanent Redirect 300
300 Multiple Choices
301 Moved Permanently 302
302 Found (temporary redirect) 304
304 Not Modified 307
307 Temporary Redirect 308
308 Permanent Redirect 300
300 Multiple Choices
Semantics per RFC 9110 and the IANA status code registry. Educational content.