Configurable private DNS firewall with DoH/DoT/DoQ, blocklists, analytics and per-device profiles. It works without signup for trial use; paid plans accept cards, PayPal and cryptocurrency, and logging retention can be disabled or configured.
Free public recursive DNS from the Swiss Quad9 Foundation with malware blocking, DNSSEC and DoH/DoT/DoQ options. Quad9 says it has no user accounts and does not correlate end users, including by IP address, to resolver queries.
NextDNS scores 40/99 and Quad9 scores 52/99. Use this page as a starting point, then review each provider profile for ownership, warnings, and policy changes.