DNS Propagation Checker

Check DNS propagation instantly across multiple global resolvers to track how your domain updates are spreading.

How to track your DNS updates with a Propagation Checker

When you update a DNS record, the change doesn't happen instantly across the globe. Internet Service Providers (ISPs) and public resolvers cache your old records to speed up browsing. Enter your domain above to query multiple global resolvers simultaneously. This helps you identify which regions have picked up your new DNS records and which are still serving stale, cached data.

Interpreting your propagation results

  • Mixed Results: If half the resolvers show your old IP address and half show the new one, you are actively in the middle of DNS propagation. You simply have to wait for the remaining caches to expire.
  • Stuck Resolvers: If 48 hours have passed and one specific resolver (like your local ISP) still shows the old record, they might be ignoring TTL (Time to Live) rules. Flushing your local DNS cache or switching to Google DNS (8.8.8.8) locally can temporarily bypass this.
  • Authoritative vs Caching: This tool queries caching resolvers (like the ones regular users use). If all resolvers return the old record, ensure your actual authoritative nameservers were updated correctly.

Related tools

A record check tool MX record DNS lookup TXT record check tool NS record validator