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You are viewing an outdated report. The latest version of this report was published on February 1st, 2024


    
DNS Site Operator
December 1st, 2023

This report details the names and locations of all DNS servers on the internet, as well as the number of domains that are serviced by these servers. In this fashion, we can discover

  • the number of sites hosted by ISPs
  • the number of sites hosted by hosting companies that use an ISP's facilities, but run their own name servers
  • the number of sites hosted by specialty DNS service providers
  • the organizations that choose to operate their own DNS servers rather than to use those of their ISP/hosting provider.

The survey works by determining each month the authoritative name server for each host (and more accurately, each domain) in our survey. We then count the number of domains hosted on each DNS server.

Search
Curious about the size of a the domain set handled by a particular ISP's name servers? Try searching for the ISP's name server. For example, to find Exodus' name servers, try
exodus.

    

Top 20 by Host Name
The top 20 name servers ranked according to the number of domains handled by each name server, with a name server uniquely identified by its fully qualifed name, are shown below.

Name Server Name   Name Server IP   Domains
ns2.gname.net  162.159.27.239  480,451
ns1.gname.net  162.159.26.46  480,451
dns.technorail.com  94.177.210.13  239,948
dns2.technorail.com  95.110.136.8  239,947
dns3.arubadns.net  95.110.220.5  239,363
dns4.arubadns.cz  81.2.216.125  239,363
ns1.bluehost.com  162.159.24.80  232,936
ns2.bluehost.com  162.159.25.175  232,921
jm1.dns.com  218.98.111.214  229,518
jm2.dns.com  183.253.57.200  229,518
ns5.kasserver.com  85.13.128.3  219,606
ns6.kasserver.com  85.13.159.101  219,602
ns02.one.com  185.10.11.10  212,976
ns01.one.com  195.206.121.10  212,968
ns1.siteground.net  75.2.77.104  204,422
ns2.siteground.net  99.83.229.113  204,420
ns1.dreamhost.com  162.159.26.14  200,868
ns2.dreamhost.com  162.159.26.81  200,864
ns3.dreamhost.com  162.159.27.84  200,841
ns1.dns.ne.jp  61.211.236.1  194,496

Survey Limitations
Our survey, while having an impressive 65,878,271 sites and 21,834,410 domains in the data set, does not include all web sites and domains. We only include those that we consider active, which, by our definition, means we found the site via a link from somewhere else. Sites not linked by anyone are by definition not included in the survey.

We also actively drop sites out of the survey that fail to respond 3 consecutive months to our HTTP queries. So, while a DNS server might still respond with information for a domain, if there is no active web site that we can reach for the domain in question, then the domain is not included in this survey at all, even if it still has other functioning services (such as email).



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