DNS Lookup
See A, MX, TXT, NS and other DNS records of a domain. Free, no sign-up
How to read the answer
Each table is one type of record: the name it is set at (Host), what it says (Value), and for how many seconds a resolver may keep it before asking again (TTL).
"No such domain" means the DNS answered that the name does not exist. "No records" of a type means the name exists but has none of that type — normal for a CAA or SRV record, for example. A resolver that did not answer is shown as a failure, never as missing records.
Answers come from one public resolver, asked over DNS over HTTPS, and are reused for up to a minute. A resolver that already held an answer may still be giving the old one after a change: its TTL decides when it asks again.
Questions about this tool
What does each record type do?
A and AAAA give a name's IPv4 and IPv6 addresses. CNAME makes a name an alias of another. MX names the servers that receive the domain's email. NS names the nameservers that hold its records. TXT holds text, such as SPF and site-verification records. SOA describes the zone itself, and CAA says which certificate authorities may issue certificates for the name.
What is the TTL?
Time to live: how many seconds a resolver may keep an answer before it asks again. A resolver that already holds an answer counts its TTL down, so the number shown here can be lower than the one set in the zone.
I changed a record. Why do I still see the old one?
A resolver keeps an answer for its TTL, so a change reaches it only once the old answer runs out. This tool asks one public resolver and reuses an answer for up to a minute. To see what several resolvers answer right now, use the DNS Propagation Checker.
What does "no such domain" mean?
The DNS answered NXDOMAIN: the name does not exist. The domain may not be registered, its registration may have lapsed, its nameservers may not hold this name, or there may be a typo. It is not the same as a resolver failing to answer, which this tool shows as a failure.
Can I look up DMARC, DKIM or SRV records?
Yes. Type the whole name the record is set at, such as _dmarc.example.com or selector._domainkey.example.com with TXT, or _sip._tcp.example.com with SRV.