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Web Servers

In 2004 (20 Million Active Websites) Running:

  • Apache - 70%
  • Microsoft IIS - 25%
  • Netscape - 1%
  • Zeus - 1%
  • Others - 3%

In 2011 (100 Million Active Websites) Running:

  • Apache - 66%
  • Microsoft-IIS - 18%
  • Nginx - 10%
  • LiteSpeed 2%
  • Google Servers - 1.0%
  • Lighttpd - 0.5%
  • Zeus - 0.1%

DNS Load Balancing

It is a good practise to have multiple IP to a host for the purpose of providing redundancy and load balancing. However less then 5% of the host have more then 1 IP address. Of the 5%, here is the summary by number of IP per host:

  • 2 IPs - 35%
  • 3 IPs - 15%
  • 8 IPs - 14%
  • 18 IPs - 6%

Updated On: 15.02.17