DNS Lookup
Look up any domain's DNS records — A, AAAA, CNAME, MX, TXT, NS, CAA, SOA, SRV and PTR — from Cloudflare, Google, Quad9 or the domain's own authoritative servers.
How it works
Reading DNS lookup results
Public resolvers vs. authoritative
Public resolvers cache answers for the record's TTL, so a change can take a while to show up there. Ask the authoritative servers to see what the zone serves right now.
Common record types
A and AAAA point a name at IPv4 and IPv6 addresses, CNAME makes it an alias, MX routes email, TXT carries SPF, DKIM and verification strings, and CAA limits which certificate authorities may issue for the domain.
Reverse lookups
Choose PTR and enter an IP address to see its reverse DNS name — mail servers check it before they accept your messages.
FAQ
Frequently asked questions
Why do different resolvers give different answers?
Each resolver caches records until their TTL runs out. After you change a record, resolvers that cached the old value keep returning it until then. GeoDNS zones can also answer differently depending on where the resolver is.
How long does a DNS change take?
Authoritative servers answer with the new value right away; public resolvers pick it up when the old record's TTL expires. Lower the TTL before planned changes to make them faster.
Can I check a nameserver change?
Yes. Look up the NS records with the authoritative option to see the delegation, and compare with a public resolver to see whether the change has spread.
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