DNS Leak Test
See which DNS resolvers actually answer your lookups.
| Resolver IP | Hostname | Network | Queries | ECS |
|---|
How to read this
These are observations, not verdicts. The table lists the resolver addresses that queried our nameserver for the unique test hostnames your browser just looked up. Multiple addresses or networks are normal — large resolvers run fleets and anycast. If you expected your VPN or private DNS to handle your lookups but see your ISP's network here, that is worth investigating. Zero results are inconclusive, not proof of anything: an extension, a content blocker, this tab being backgrounded, or a filtering resolver may have stopped the probes.
Privacy
We log the resolver addresses that query our test zone — if you run your own resolver, that can be your own address. Some resolvers forward a truncated form of your network (ECS); we show only its prefix length. Results live in memory for 15 minutes and are never written to disk.