DNS Propagation Checker
Free DNS Propagation Checker
Compare a domain's A record across major global resolvers to see whether a DNS change has fully propagated yet.
DNS Propagation Checker
Compare the A record for a domain across resolvers around the world.
Enter a domain above to run a real, live check.
Capabilities
What it checks
4 global resolvers
Cloudflare, Google, AdGuard and dns.sb queried in parallel.
Consistency check
Flags immediately if resolvers disagree on the current answer.
Live, every time
No caching — each run queries all four resolvers fresh.
Why use it
Benefits
- Confirm a DNS record change has propagated before troubleshooting further.
- Catch a resolver still serving a stale cached answer after a migration.
- Export results as JSON to document propagation status for a change record.
FAQ
Frequently Asked Questions
During propagation after a DNS change, or if a caching resolver hasn't refreshed yet, different resolvers can briefly return different answers.