
NextDNS
Configurable DNS-level blocking for every device on your network.
Every website you visit starts with a DNS lookup and by default those lookups leave your device in plain text so your ISP, your network operator, or anyone in between can see, log, or even tamper with the domains you request. Encrypted DNS (DoH, DoT, or DNSCrypt) hides those queries and lets you pick a resolver that respects your privacy instead of accepting your ISP's default. The trade-off is that you are moving trust rather than removing it: whichever resolver you choose still sees your lookups so its logging policy, jurisdiction, and track record weigh far more than any marketing claim.
Start by deciding how much you want to run yourself. A hosted resolver like Quad9 or NextDNS is a set-and-forget swap that works on every device, while a local tool like dnscrypt-proxy or an Android app like RethinkDNS gives you more control at the cost of setup effort. Either way you are trusting whoever answers your queries so weigh their no-logging claims, whether those claims have been independently audited, the jurisdiction they operate under, and whether the software is open to inspection. Free public resolvers are enough for most people; paid tiers mostly buy custom filtering, dashboards, and higher query limits.
Here are some things to look for.

Configurable DNS-level blocking for every device on your network.

Set-in-minutes public DNS resolver that blocks ads and trackers.

Free, no-account encrypted resolver from the Mullvad VPN team.

Nonprofit Swiss resolver that blocks malicious domains by default.

Highly customizable DNS from the Windscribe team.

Local proxy that encrypts your DNS and lets you pick any resolver.

Open-source Android app pairing encrypted DNS with a per-app firewall.

Self-hosted network-wide ad-blocking DNS server

Self-hosted DNS server with built-in encryption