DNS tools

DNS lookup (dig)

Query A, AAAA, MX, TXT, CNAME, NS, SOA, SRV, CAA, PTR — all types at once.

DNS propagation

live

Query 15 global resolvers — see if your DNS change has propagated worldwide.

Reverse DNS (PTR)

Find the PTR / hostname for an IPv4 or IPv6 address.

DNS chain trace

Walk the resolution chain: TLD → authoritative NS → final answer.

Wildcard detector

Detect catch-all wildcard records on a domain.

Zone transfer (AXFR) test

Check whether your authoritative name servers leak the full zone via AXFR.

DNSSEC validator

Check the DS / DNSKEY chain to see whether DNSSEC is signed for a zone.