DNS Propagation Checker — Verify Global Resolver Consensus

After changing A, MX, TXT, or NS records, your laptop only sees one resolver path. The DNS Propagation Checker queries many global public resolvers from the DevTools backend and shows whether they agree.

Workflow

1. Note the TTL on the old record before changing authoritative DNS
2. Apply the change at your DNS host
3. Open /dns-propagation, enter the FQDN and record type
4. Wait for the consensus badge — partial disagreement is normal until TTL expires

Tips

• Query the exact name you changed (www vs apex)
• MX/TXT changes often need extra time for mail providers
• Pair with DNS Lookup for a single-resolver deep dive