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dns tools

DNS Propagation Checker

DNS Propagation compares answers from multiple public resolvers. It helps confirm whether a change is broadly visible or still cached differently around the internet.

What It Compares

  • A, AAAA, CNAME, MX, TXT, and other common DNS records.
  • Answers from major public resolvers.
  • Resolver errors, no-answer states, and differing responses.

When To Use It

Use it after changing DNS records, moving a website, updating MX records, validating TXT ownership records, or troubleshooting users who see different answers from different networks.

Reading The Result

  • Matching answers usually mean the change is widely visible.
  • Mixed answers often point to TTL cache timing.
  • If every resolver fails, review the authoritative DNS setup.