OpenDNS is a company and service that extends the Domain Name System (DNS) by adding features such as phishing protection and optional content filtering in addition to DNS lookup, if it's DNS servers are used.

OpenDNS was acquired by CISCO August 27, 2015

More Information#

There might be more information for this subject on one of the following:
  • [#1] - OpenDNS - based on information obtained 2019-09-09