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DomainTools, LLC
  • Brand Monitoring
  • Cyber Security
  • DNS Research
  • Whois Lookup
Founded Seattle, Washington, United States (2002 (2002))
Founder Jay Westerdal
Headquarters Seattle, Washington, United States
Area served
Key people
  • Tim Chen (CEO)
  • Susan Prosser (VP, Client Services)
  • Bruce Roberts (CTO)
  • Domain Marketplace
  • Domain Report
  • Whois Lookup
Footnotes / references
Jay Westerdal

DomainTools, LLC provides DNS research tools that use a database of domain name, IP address, and whois data. These tools are used for brand protection, domain monitoring, domain valuation, and cybercrime investigation.[1][2] Other services include a name suggestion, patented reverse IP address, and a combined screenshot history view that incorporates millions of screenshots that shows how website looked recently and in the past. As of August 2012, DomainTools was ranked as the 214th site for global Internet traffic according to Alexa rankings.[3]

Founded in 2002 by Jay Westerdal, DomainTools was later sold to Thought Convergence, Inc. in 2008.[citation needed] DomainTools is based in Seattle, Washington.[4]

WHOIS function

The WHOIS function is an online database where people can search a DOMAIN-NAME and find out the contact information of the DOMAIN-OWNER.


  1. ^ Linton, Morgan (14 October 2013). "Domaining MBA Monday: Why DomainTools Is Such A Critical Tool For Domainers". Retrieved 24 March 2014. 
  2. ^ Krebs, Brian (6 February 2014). "Deconstructing the $9.84 Credit Card Hustle". Retrieved 24 March 2014. 
  3. ^ "". Alexa Internet. Retrieved 10 August 2012. 
  4. ^ "Company Overview of DomainTools, LLC". Bloomberg Businessweek. Retrieved 24 March 2014. 

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