|Operating system||Heavily modified version of Debian Linux|
In 2010 GWS was reported as serving 13% of all web sites in the world. In May, 2015, GWS was ranked as the fourth most popular web server on the internet after Apache, nginx and Microsoft IIS, powering an estimated 7.95% of active websites. Web page requests on most Google pages provide "gws" (without a version number) in the HTTP header as an indication of the web server software being used.
Information regarding GWS is scarce. In a blog post from Google's Chicago office in 2011, Google provided some details on GWS:
"The Google Web Server (GWS) team builds and improves the proprietary web-serving infrastructure that powers Google web search and many other Google search properties. GWS is involved in almost every user-visible change to the google.com site, meaning that there's frequently something to write home about. We're always looking for gung-ho engineers, ideally with a background in systems and experience working with very large C++ codebases."
- Interview with Bharat Mediratta About the Google Web Server. Jonathan Dingman, Ginside.com, 03/24/2008
- Google Chrome: free software as a launching platform Archived 2019-07-24 at the Wayback Machine, Charles-Axel Dein 2009
- "Google mystery server runs 13% of active websites". The Register.
- "May 2015 Web Server Survey". 19 May 2015. Retrieved 2018-12-05.
- "Google Chicago Job Openings". Archived from the original on 2012-04-15. Retrieved 2018-12-05.