The conference, that took place before the CATNIX Technical Commission, presented the Quad9 project as an example of public and free DNS service that does not use data from users in a commercial way.
The Quad9 project, created a year ago, has increased its presence worldwide, having 140 nodes in 59 different countries.
As Quad9 supports DNS-over-TLS, DNSCrypt and DNS-over-HTTP, DNS queries do not travel, increasing therefore end users privacy. Quad9 enables DNSSEC validation, so that makes sure that DNS data have not been altered.
Apart from offering privacy, Quad9 blocks DNS identified as malware, phishing or other malicious domains such as botnets.