[STD97]    Internet Standard 97,
              <https://www.rfc-editor.org/info/std97>.
              At the time of writing, this STD comprises the following:

              Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,
              Ed., "HTTP Semantics", STD 97, RFC 9110,
              DOI 10.17487/RFC9110, June 2022,
              <https://www.rfc-editor.org/info/rfc9110>.