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You are viewing an outdated report.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


    
DNS Site Operator
April 1st, 2020

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
jm1.dns.com  119.167.180.140  883,925
jm2.dns.com  119.167.180.140  883,925
ns1.bluehost.com  162.159.24.80  353,760
ns2.bluehost.com  162.159.25.175  353,757
ns1.myhostadmin.net  118.112.237.30  322,636
ns2.myhostadmin.net  116.140.34.8  322,625
ns4.myhostadmin.net  118.112.237.30  322,593
ns5.myhostadmin.net  118.123.249.114  322,591
ns3.myhostadmin.net  118.123.249.114  322,591
ns6.myhostadmin.net  61.188.37.172  322,589
dns2.technorail.com  95.110.136.8  314,930
dns.technorail.com  94.177.210.13  314,929
dns4.arubadns.cz  81.2.216.125  314,555
dns3.arubadns.net  95.110.220.5  314,554
ns1.dreamhost.com  64.90.62.230  279,108
ns2.dreamhost.com  208.97.182.10  279,103
ns3.dreamhost.com  66.33.205.230  278,986
ns2.ecpage.com  47.74.150.158  270,683
ns1.ecpage.com  47.75.3.214  270,683
ns01.one.com  195.206.121.10  265,104

Survey Limitations
Our survey, while having an impressive 84,853,870 sites and 31,464,120 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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