About

A clearer view of global DNS behavior.

DNSRadar is an independent diagnostic tool for checking how public DNS resolvers answer a domain or fully qualified domain name. It was built for system administrators, developers, domain owners and support teams who need evidence from more than one recursive resolver.

A DNS change does not become visible everywhere at the same instant. Recursive caches expire at different times, providers follow different network paths and individual resolvers may fail independently. DNSRadar keeps those answers separate instead of hiding them behind a single combined result.

Each check records the resolver, reported location, returned value, status and measured latency. The automatic summary highlights consistency or partial propagation, while permanent links and exports make results easier to share in migration plans and support cases.

Operational principles