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DNS Propagation Checker

Check DNS record propagation across global public resolvers. Compare answers from Google, Cloudflare, Quad9, and more.

Hostname

Queries 10 public DNS resolvers in parallel. Useful after DNS changes to see whether answers match globally.

Checks use public recursive resolvers and may reflect regional caching. Allow time for TTL expiry after DNS changes.

More Developer Tools

DNS LookupQuery public DNS records for any domain — A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, CAA, and PTR.
DMARC CheckerLook up and parse DMARC DNS records for a domain. Review policy, reporting tags, and SPF alignment hints.
Reverse DNS LookupLook up PTR reverse DNS records for a public IP address. Resolve hostnames and verify forward DNS (FCrDNS) alignment.
MX Record LookupLook up mail exchange (MX) DNS records for a domain, sorted by priority with mail host IP resolution.
SPF Record CheckerLook up and validate SPF TXT records for a domain. Parse mechanisms, count DNS lookups, and review policy strength.
IP Address LookupLook up geolocation, ISP, ASN, reverse DNS, and IP format details for any public IPv4 or IPv6 address.

Part of:Free DNS & Network Tools