Quad9 Domain Name System Service. It is supported by donations and its sole product is the operation of its DNS service. When your computer performs any Internet transaction that uses the DNS and most transactions do Quad9 blocks lookups of malicious host names from an up-to-the-minute list of threats.
Quad9 is a new service available from IBM Security and a collection of industry partners. It is free of charge for both personal and business use. The new Quad9 Domain Name System DNS service will protect users from accessing millions of malicious Internet sites known to steal personal information infect users with ransomware and.
Comodo Secure DNS is a domain name resolution service that resolves your DNS requests through our worldwide network of redundant DNS servers bringing you the most reliable fully redundant DNS service anywhere for a safer smarter and faster Internet experience.
Quad9 has set itself apart from other DNS providers by voluntarily placing itself within a jurisdiction which strictly enforces privacy laws to the. Quad9 is a non-commercial DNS provider that does not collect personal information nor sell it. Quad9 is a recursive DNS service providing cybersecurity protection against malware and phishing. For example SAD dns vulnerability.