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Type Managed DNS Service
Founded 1991
Founders Dan Kimball, Brian Smith, Sean Stafford, Eric Radtke
Headquarters Louisville, KY
Area served Worldwide
Key people Dan Kimball
Parent Comodo Group, since 2011
Website www.dns.com

DNS.com is an enterprise, proprietary DNS service. The company provides an external managed DNS service that directs traffic on the Internet. It was the first service to offer the ability to geotarget a company’s website using a web based control panel and DNS.

It provides two separate anycast networks or constellations mapped to the nameservers:

  • ns1.dns.com
  • ns2.dns.com
  • ns3.dns.com
  • ns4.dns.com


The DNS.com website first appeared in 1991, and has been used to provide DNS service for the past two decades. In 2010, Comwired Inc. acquired the domain name and now operates its enterprise DNS service at the site.[1] Comwired was founded in 2008 as a service that redirected web visitors based on geography using DNS. The company is headquartered in the historic terminal of the Bowman Field airport, known as the Administration Building, in Louisville, KY.

In February 2011, DNS.com was acquired by Comodo, an Internet security company and certificate authority.[2]


The company was founded by Dan Kimball (CEO), Brian Smith (CTO), Sean Stafford (COO) and Eric Radtke (CMO).[3] The founding team met in Louisville working at ModernGigabyte, later acquired by Parallels, Inc.

Business overview[edit]

DNS.com was the first commercial service to introduce hyperlocal geotargeting technology (also recognized as geolocation or IP location technology) to DNS. The service detects the location of Web visitors and allows website administrators to determine traffic rules to route visitors to geographically appropriate content or servers. This process can be used to target advertising, localize content, manage geographic rights, and optimize speed and performance among a group of web servers or content delivery networks.


The company’s technology utilizes provisional and patent-pending methods for website creation and segregation, identification and routing of Internet visitors.

Domain security[edit]

DNS.com, jointly with Phillip Hallam-Baker, VP and Principal Scientist at Comodo, proposed the following DNS mechanisms to complement use of Domain Name System Security Extensions (DNSSEC):


DNS.com serves direct customers including ecommerce websites, Software as a service applications, and advertising and marketing agencies. DNS.com also provides transparent authoritative DNS services through its reseller distribution channel to Internet service providers such as Domain name registrars and web hosting companies.

Industries that can benefit from the company's geolocation technology include online advertisers, online advertising networks, online retailers, and technology companies.


Current services are managed DNS hosting and blocking DDoS attacks at the node level. Through the DNS.com administrative control center, geo-location or geo-targeting of websites is made possible. A JSON API allows developers to integrate the service into existing applications.[6] The Comwired application itself is now offered as a white label solution using the DNS.com API.

As of November 2010, DNS.com has server nodes in 14 locations in North America, Europe, and Asia.[7]

The cities in which DNS.com's nodes are located are

The service is in direct competition to NeuStar UltraDNS and Dyn Inc. Dynect.

Common uses[edit]

In addition to simply serving authoritative DNS answers to queries, uses of the DNS.com system include content localization, targeted online advertising, and geographic rights management.

Target content[edit]

Perhaps the most common use of geolocation is by webmasters who want to serve local content on a global domain. Using geo targeting, websites can return personalized web content based on a user's present location. This can be used to redirect a visitor to a local translated site, display multi-currency pricing, provide local versions of articles and content, or carry inventory to meet the demand of the consumers in the region, eliminating irrelevant merchandise.

Target advertising[edit]

Geotargeting ad messages to specific locations can help businesses reach ideal customers and avoid wasted impressions. This can be used to display selected pay per click or display advertisements only to users in specific locations.

Comply with regulations[edit]

IP geolocation provides the ability for industries that are regulated by state and country borders to meet regulatory requirements by allowing them to restrict or black out content.

See also[edit]


External links[edit]