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What is 1.1.1.3?

1.1.1.3 is the primary DNS resolver address for Cloudflare for Families, run by Cloudflare. 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 1.1.1.3?

1.1.1.3 is the primary DNS resolver address for Cloudflare for Families, operated by Cloudflare. Cloudflare speed with built-in malware and adult-content blocking — a fast, simple family-safe option.

Operator
Cloudflare
This address
1.1.1.3 (primary)
Paired address
1.0.0.3
Encrypted hostname (DoH/DoT)
family.cloudflare-dns.com
  • No-log : yes
  • DNSSEC : yes
  • Malware blocking : yes
  • Ad blocking : no
  • Family filter : yes

Primary and secondary — why there are two

1.1.1.3 is Cloudflare for Families's primary address — the one your device queries first. Cloudflare for Families also publishes a secondary, 1.0.0.3, 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 1.1.1.3 from your connection

This runs a live timing check against Cloudflare for Families's encrypted DoH endpoint — a browser can't query the raw IP 1.1.1.3 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?

Cloudflare speed with built-in malware and adult-content blocking — a fast, simple family-safe option.

Best for: Family filtering, Malware blocking, Speed.

Like any public resolver, Cloudflare for Families 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 Cloudflare for Families, set 1.1.1.3 as your primary DNS and 1.0.0.3 as the secondary — see the device and router setup guides or read the Cloudflare DNS review (covers 1.1.1.3) .

1.1.1.3 — frequently asked questions

Is 1.1.1.3 safe to use?

Yes. 1.1.1.3 is a legitimate public DNS address operated by Cloudflare (Cloudflare for Families). Same privacy stance as Cloudflare's base resolver, with malware and adult-content filtering added.

Is 1.1.1.3 free?

Yes — Cloudflare for Families is a free public resolver. Point your device or router's DNS at 1.1.1.3 (primary) and 1.0.0.3 (secondary).

Does 1.1.1.3 log my activity?

Same privacy stance as Cloudflare's base resolver, with malware and adult-content filtering added.

Is 1.1.1.3 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 1.0.0.3?

It's recommended. 1.1.1.3 is Cloudflare for Families's primary address and 1.0.0.3 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.