Back in 2007, Apache, Lighttpd (Youtube) and custom Java server ("faster than Tomcat"). Nowadays some services probably based on nginx, others written in-house

Back in 2007, Apache, Lighttpd (Youtube) and custom Java server ("faster than Tomcat"). Nowadays some services probably based on nginx, others written in-house and some may still be on forked Apache. The Google Web Server - a custom server used only by Google itself - was originally built from open-source Apache code, according to a former Google employee. http://www.theregister.co.uk/2010/02/03/google_web_server_based_on_apache/ http://www.theregister.co.uk/2010/02/03/google_web_server_ba...