Fast DNS diagnostics for domains & infrastructure
DNS Diagnostics

Free DNS Lookup & DNS Checker

Check A, AAAA, MX, NS, CNAME, TXT, SOA, CAA, SRV and PTR records instantly. Get detailed DNS answers, TTL values and raw resolver data for any domain.

DNS Results
Enter a domain above to begin.
Ready for lookupSearch a domain to see its DNS records.


Online DNS Checker & Record Lookup
Use this free DNS lookup tool to inspect the public DNS records of a domain. It is useful for checking website configuration, nameservers, email routing, verification records and common DNS troubleshooting tasks.
A & AAAA Records
Check which IPv4 and IPv6 addresses a domain resolves to.
MX Records
Inspect the mail servers configured to receive email for a domain.
NS & CNAME Records
Verify authoritative nameservers and DNS aliases.
TXT, CAA & Other Records
Review verification, security and service-related DNS data.


About RX HOSTER DNS Lookup
This tool uses Google's public DNS-over-HTTPS resolver for read-only DNS queries. It does not modify DNS records. Results may be affected by resolver caching and DNS propagation.