H2O (web server)

H2O is a free and open-source web server software.

H2O
Original author(s)
Initial releaseFebruary 18, 2015 (2015-02-18)[1]
Stable release
2.2.6 / August 13, 2019 (2019-08-13)[2]
Repository
Written inC
Operating systemUnix-like
TypeWeb server
LicenseMIT License
Websiteh2o.examp1e.net

It is written in C, and is distributed under the terms of the MIT License.

Overview

It is designed on the presence of HTTP/2 and TLS, and maximizing the use of HTTP/2 technologies such as prioritization and server push, it achieves significantly better performance than conventional web server software such as nginx.[3]

Features

H2O has the following key features:[4]

History

In July 2014, Kazuho Oku started the development H2O as a mobile game server inside DeNA.[6] The initial version was released in December 2014, and the first stable version was released in February 2015 when the HTTP/2 specification was finalized.[7]

See also

  • Fastly - The largest user of H2O in the world. Oku joined Fastly in January 2017.

References

  1. Kazuho Oku (2015-02-19). "H2O, the new HTTP server goes version 1.0.0 as HTTP/2 gets finalized". Kazuho's Weblog. Retrieved 2020-08-01.
  2. "Releases". GitHub. Retrieved 2020-08-01.
  3. 原田美穂 (2015-12-08). "Nginxより高速、HTTP/2サーバー「H2O」" (in Japanese). @IT. Retrieved 2020-08-01.
  4. "H2O - the optimized HTTP/2 server". DeNA. Retrieved 2020-08-01.
  5. "Base Directives - Configure". H2O - the optimized HTTP/2 server. Archived from the original on 2023-05-29. Retrieved 2023-07-18.
  6. Kazuho Oku (2015-01-27). "H2O - making HTTP better" (in Japanese). SlideShare. Retrieved 2020-08-01.
  7. Kazuho Oku (2016-02-05). "ウェブを速くするためにDeNAがやっていること - HTTP/2と、さらにその先" (in Japanese). SlideShare. Retrieved 2020-08-01.
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