DNS provider feature comparison table
DNS Provider Speed Security Privacy Ad Blocking DoH DNSSEC
Google Public DNS★★★★★★★★★☆★★★☆☆
Cloudflare DNS★★★★★★★★★★★★★★★
OpenDNS★★★★☆★★★★★★★★☆☆
IBM Quad9★★★★☆★★★★★★★★★☆
AdGuard DNS★★★★☆★★★★☆★★★★★
NextDNS★★★★☆★★★★★★★★★★
Control D★★★★☆★★★★☆★★★★☆
Mullvad DNS★★★★☆★★★★☆★★★★★
114 DNS★★★★☆★★★☆☆★★☆☆☆
AliDNS★★★★★★★★☆☆★★☆☆☆

Cloudflare DNS

Global
Speed★★★★★
Security★★★★★
Privacy★★★★★
Ad Blocking
DoH
DNSSEC

Google Public DNS

Global
Speed★★★★★
Security★★★★☆
Privacy★★★☆☆
Ad Blocking
DoH
DNSSEC

IBM Quad9

Global
Speed★★★★☆
Security★★★★★
Privacy★★★★☆
Ad Blocking
DoH
DNSSEC

Legend

Supported
Not supported
Rating (1–5 stars)
DoH: DNS over HTTPS
DNSSEC: DNS Security Extensions

Which DNS Should You Choose?

Best for Speed

Cloudflare (1.1.1.1) and Google DNS (8.8.8.8) consistently rank among the fastest public DNS servers globally, with extensive anycast networks.

Best for Security

IBM Quad9 (9.9.9.9) blocks known malicious domains using threat intelligence. OpenDNS offers strong phishing and malware protection.

Best for Privacy

Cloudflare, NextDNS, and Mullvad DNS all commit to minimal or zero logging of your DNS queries.

Best for Ad Blocking

AdGuard DNS, NextDNS, and Control D block ads and trackers at the DNS level — no browser extension needed.

View All Providers Setup Guide