Free public DNS resolver that blocks known malicious domains.
Swiss company
- Free Plan
Foundation · Zürich, Zurich, Switzerland
Not-for-profit foundation in Zurich that operates the Quad9 public DNS resolver. It moved its headquarters from California to Switzerland in 2021.
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A foundation under Swiss law has no shareholders. Quad9 is governed by its foundation council, which includes members from Switzerland and abroad, and is supervised by the Swiss Federal Department of Home Affairs. Its operating budget comes from sponsorships, grants and donations; founding sponsors were the Global Cyber Alliance, IBM and Packet Clearing House.
Quad9 began as a project of the Global Cyber Alliance, IBM and Packet Clearing House and launched its public service in 2017. In February 2021 it announced the move of its headquarters from California to Zurich; the Swiss foundation (registered name "Quad9") was entered in the Zurich commercial register on 9 June 2021.
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Free public DNS resolver that blocks known malicious domains.
Swiss company
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Last verified