What This Tool Checks
We query a global list of public DNS resolvers — across North America, Europe, and Asia-Pacific — and show the record each one currently returns for your domain. When every resolver returns the same answer, your DNS change has fully propagated.
A Note on How the Queries Travel
Many public resolvers (Google, Cloudflare, Quad9) use anycast routing, which means our single server typically reaches the nearest point-of-presence rather than the city advertised here. The country flags reflect each operator’s headquarters, not the physical probe location. What this tool is genuinely good at is detecting resolver disagreement — if different operators return different answers, propagation is still in progress.
How to Use the Results
- Enter the domain you want to check (e.g. example.com).
- Select the record type: A for IPv4, AAAA for IPv6, CNAME for aliases, MX for mail, TXT for verification/SPF/DMARC, NS for nameservers.
- A green badge means all resolvers returned the same answer — propagation is complete.
- A yellow status means resolvers disagree — the change is still propagating. Wait and re-check.
- A red ✗ on a row means that resolver returned no record — often normal during early propagation.
Tips for Faster Propagation
Drop your TTL to 300 seconds at least 48 hours before making changes so resolvers cache the new value briefly. Use authoritative nameservers that refresh quickly. After the change, monitor with this tool — once every resolver matches, raise the TTL back to 3600 or 86400 for better cache performance.