https://datatracker.ietf.org/doc/html/rfc2616
RFC 2616 - Hypertext Transfer Protocol -- HTTP/1.1
Hypertext Transfer Protocol -- HTTP/1.1 (RFC 2616, ; obsoleted by RFC 7230, RFC 7231, RFC 7232, RFC 7233, RFC 7234, RFC 7235)
hypertext transfer protocolrfc 2616http
https://www.rfc-editor.org/info/rfc2616
Information on RFC 2616 ยป RFC Editor
rfc 2616informationeditor