Web Server OS 统计

[josephpei]

http://w3techs.com/technologies/details/os-linux/all/all

W3Techs checked the top ten million web servers daily from June 2013, but W3Techs's definition of "website" differs a bit from Alexa's definition; the "top 10 million" websites are actually fewer than 10 million. W3Techs claims that these difference "have no statistical significance".

http://www.w3cook.com/os/summary/

W3Cook checks the top one million web servers monthly, taken from the Alexa ranking, using HTTP headers, DNS records, and WHOIS data, among other sources.

两家的统计数据有差异，但是 Ubuntu + Debian 份额都是第一