How many active sites are there? Netcraft.com, abgerufen am 29. Januar 2019 (englisch, In the early days of the web, hostnames were a good indication of actively managed content providing information and services to the Internet community. The situation is now considerably more blurred […]).
Active Sites. Abgerufen am 29. Januar 2019 (englisch, It is therefore desirable to find a way to count sites, rather than IPs, but excluding those sites which come from a standard or computer-filled template.).
w3.org
CERN httpd. World Wide Web Consortium, abgerufen am 25. April 2009.
w3techs.com
Technologies Overview. W3Techs, abgerufen am 29. Januar 2019 (We include only the top 10 million websites […] in the statistics in order to limit the impact of domain spammers.).
