DNS checker
Query a record at 84 public resolvers simultaneously and instantly see whether everyone gets the same answer.
What does the DNS checker show?
After a DNS change it takes a while before every resolver in the world returns the new answer. NetTrace queries your record at 84 resolvers at once: anycast networks like Cloudflare, Google and Quad9 and local resolvers in the Netherlands, Germany, Russia, South Africa, Mexico, Australia, China, Korea and more. You see immediately whether a change has propagated.
An anycast resolver answers from the location closest to our server, which is why it is labelled "Anycast" rather than a city.