[STD99]    Internet Standard 99,
              <https://www.rfc-editor.org/info/std99>.
              At the time of writing, this STD comprises the following:

              Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,
              Ed., "HTTP/1.1", STD 99, RFC 9112, DOI 10.17487/RFC9112,
              June 2022, <https://www.rfc-editor.org/info/rfc9112>.