Free tool · Network

DNS lookup

Check the DNS records for any domain, or enter an IP address for a reverse (PTR) lookup. Results come from a public resolver, with DNSSEC status.

Query DNS

NameTypeTTL (s)Value

Common record types

TypeWhat it holds
A / AAAAIPv4 / IPv6 address for a name
CNAMEAn alias pointing to another name
MXMail servers for the domain, with priority
NSAuthoritative name servers
TXTText such as SPF, DKIM, DMARC and ownership checks
SOAZone details: primary server, serial and timers
CAAWhich certificate authorities may issue certificates
SRVHost and port for a service, such as SIP
PTRThe name for an IP address (reverse lookup)

Frequently asked questions

Why do I get a different answer from my own network?

Your company may use split DNS, where internal servers answer differently from public DNS. Results can also differ while old records are still cached, until their TTL expires.

Why don’t internal names resolve?

This tool asks a public resolver, which can only see public DNS. Names that exist only on your internal DNS servers will return NXDOMAIN.

What does DNSSEC validated mean?

The resolver checked the records’ cryptographic signatures, so they were not altered in transit. Many domains are not signed, which is common and not an error.

Who answers the query?

Cloudflare’s public resolver (1.1.1.1), queried over HTTPS by our lookup service. Queries are not stored.