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What is 9.9.9.9?

9.9.9.9 is the primary DNS resolver address for Quad9, run by Quad9 Foundation. Here's what it does, whether it's safe, and a way to time it from your own connection.

Updated 4 min read

What is 9.9.9.9?

9.9.9.9 is the primary DNS resolver address for Quad9, operated by Quad9 Foundation. A security-first non-profit resolver that blocks known malicious domains and keeps no source-IP logs.

Operator
Quad9 Foundation
This address
9.9.9.9 (primary)
Paired address
149.112.112.112
Encrypted hostname (DoH/DoT)
dns.quad9.net
  • No-log : yes
  • DNSSEC : yes
  • Malware blocking : yes
  • Ad blocking : no
  • Family filter : no

Primary and secondary — why there are two

9.9.9.9 is Quad9's primary address — the one your device queries first. Quad9 also publishes a secondary, 149.112.112.112, as an automatic fallback. Configuring both is recommended: DNS is critical infrastructure, and a second address means a momentary problem with one server doesn't take your connection offline. Both resolve the same names with the same features, so there's no downside to listing both.

Time 9.9.9.9 from your connection

This runs a live timing check against Quad9's encrypted DoH endpoint — a browser can't query the raw IP 9.9.9.9 directly, so this is the closest honest measurement of that resolver from your network. Nothing is fabricated: if the endpoint can't be reached or read, the tool says so instead of guessing a number.

Runs in your browser against the resolver's DoH endpoint; nothing is stored. For a full multi-resolver comparison on your connection, use the DNS speed test.

Should you use it?

A security-first non-profit resolver that blocks known malicious domains and keeps no source-IP logs.

Best for: Security, Malware blocking, Privacy.

Like any public resolver, Quad9 adds a small round trip compared with your ISP's default DNS, and it can't optimize CDN routing as tightly as a resolver peered locally with your network in every case. Use the live timing check above, or the full DNS speed test, to see whether it's actually faster than what you have now.

To use Quad9, set 9.9.9.9 as your primary DNS and 149.112.112.112 as the secondary — see the device and router setup guides or read the Quad9 full review .

9.9.9.9 — frequently asked questions

Is 9.9.9.9 safe to use?

Yes. 9.9.9.9 is a legitimate public DNS address operated by Quad9 Foundation (Quad9). Blocks malicious domains using threat intelligence and does not retain source IP addresses. Operated as a Swiss non-profit.

Is 9.9.9.9 free?

Yes — Quad9 is a free public resolver. Point your device or router's DNS at 9.9.9.9 (primary) and 149.112.112.112 (secondary).

Does 9.9.9.9 log my activity?

Blocks malicious domains using threat intelligence and does not retain source IP addresses. Operated as a Swiss non-profit.

Is 9.9.9.9 faster than my ISP's DNS?

Often, but it depends on your location and network. Use the timing button above to measure it from your own connection, or run the full DNS speed test.

Do I also need the secondary 149.112.112.112?

It's recommended. 9.9.9.9 is Quad9's primary address and 149.112.112.112 is the secondary. Configuring both means that if the primary is briefly unreachable your device falls back to the secondary automatically instead of losing DNS. They resolve identically — the second address is purely a backup.