Public DNS IP addresses
Every curated resolver address on this site, grouped by the company that runs it — 14 addresses and 4 head-to-head comparisons, each with what it filters, what it logs, and a live timer.
What is a DNS resolver IP address?
A DNS resolver IP address is the numeric address you enter in a device or router's DNS settings — 8.8.8.8 or 1.1.1.1, for example. Each one belongs to a company that runs a resolver on it, and that company decides what gets filtered and what gets logged.
Resolver addresses by provider
14 addresses from 9 operators. A primary is the address your device queries first; a secondary is the automatic fallback it only uses if the primary stops answering.
- Cloudflare CloudflareCloudflare DNS review
- CF Families CloudflareCloudflare DNS review
- Google GoogleGoogle Public DNS review
- Quad9 Quad9 FoundationQuad9 review
- OpenDNS CiscoOpenDNS review
- AdGuard AdGuardAdGuard DNS review
- Level3 Lumen (formerly Level 3)
- Xfinity Comcast
- Yandex Yandex
Head to head
4 address-level comparisons. Each one carries a live timer for both resolvers, so you measure them from your own connection instead of trusting a global speed claim.
How to read these pages
Every address page answers the same four questions in the same order, so two of them can be compared at a glance:
- Who runs it. The operating company, taken from the provider registry — not the address block's owner, which is often a different entity.
- What it filters. Malware, ads, and family filtering are flagged per address,
because an operator's addresses do not all behave the same way —
1.1.1.1and1.1.1.3are both Cloudflare, and only one of them blocks adult content. - What it logs. The operator's own published stance, quoted rather than summarised into a score.
- Whether it can be timed here. A browser cannot send a plain DNS query to a raw IP, so an address is only timed when its operator publishes a browser-reachable DoH endpoint. When there is none, the page says so instead of inventing a number.
To compare more than two resolvers at once, run the full DNS speed test — it measures every browser-testable resolver in the registry, not just the addresses listed here.
Resolver IP addresses — questions
How do I find out who runs a DNS IP address like 8.8.8.8?
Pick the address from the list on this page. Every curated address has its own page naming the operating company, what the resolver filters, what it logs, and whether it can honestly be timed from a browser. Addresses not listed here are covered by the full public DNS server directory.
What is the difference between a primary and a secondary DNS address?
Your device queries the primary first and only falls back to the secondary if the primary stops answering — the two are not queried in parallel, and the secondary is not faster. Both point at the same service, so set a matched pair from one operator rather than mixing providers.
Are these DNS IP addresses free to use?
Every address listed here belongs to a free resolver, apart from the ISP addresses, which answer only for that ISP's own customers. Free does not mean private, though: logging and filtering vary widely between operators, and each address page states what its operator publishes.
Which DNS IP address is the fastest?
There is no single global winner — the fastest resolver depends on your location, your ISP, and the route between them. Run the DNS speed test from your own connection, or open one of the head-to-head pages below to time two addresses against each other.