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DomainTools, LLC
  • Brand Monitoring
  • Cyber Security
  • DNS Research
  • WHOIS Lookup
Founded July 13, 2002; 14 years ago (2002-07-13)[1]
Seattle, Washington, U.S.
Founder Jay Westerdal
Headquarters Seattle, Washington, U.S.
Area served
Key people
  • Tim Chen (CEO)
  • Susan Prosser (VP, Client Services)
  • Bruce Roberts (CTO)
  • Domain Marketplace
  • Domain Report
  • WHOIS Lookup

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.[2][3] Other services include a name suggestion, patented reverse IP address, and a combined screenshot history view that incorporates millions of screenshots that shows how a website looked recently or in the past.

As of August 2012, DomainTools was ranked as the 214th site for global Internet traffic, according to Alexa rankings.[4]

Founded in 2002 by Jay Westerdal, DomainTools was later sold to Thought Convergence, Inc. in 2008.[citation needed] DomainTools is based in Seattle, Washington, USA.[5]

WHOIS function[edit]

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


  1. ^ " WHOIS, DNS, & Domain Info - DomainTools". WHOIS. Retrieved 2016-11-01. 
  2. ^ Linton, Morgan (14 October 2013). "Domaining MBA Monday: Why DomainTools Is Such A Critical Tool For Domainers". Retrieved 24 March 2014. 
  3. ^ Krebs, Brian (6 February 2014). "Deconstructing the $9.84 Credit Card Hustle". Retrieved 24 March 2014. 
  4. ^ "". Alexa Internet. Retrieved 10 August 2012. 
  5. ^ "Company Overview of DomainTools, LLC". Bloomberg Businessweek. Retrieved 24 March 2014. 

External links[edit]