Free SEO utility
DNS Propagation Checker
Compare answers from multiple public DNS resolvers to see whether common record types are returning consistently.
Compares selected public recursive resolvers. This is useful for propagation checks, but it does not represent every resolver or geography worldwide.
Enter a domain and record type.
Why this tool exists
Catch inconsistent DNS answers after a change.
After DNS updates, cached answers can differ between resolvers. Comparing multiple providers is a quick diagnostic before deeper investigation with your authoritative DNS host.
Security and quality controls
- Request rate limiting
- Strict length and format validation
- Fixed external endpoints where possible
- SSRF protection on URL fetching
- Short network timeouts and response-size caps
- No secret API keys exposed in the browser