DNS lookup
Look up a domain’s A, AAAA, CNAME, MX, NS, TXT, SOA, CAA and other records through public DNS servers, or the PTR name of an IP address.
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What you enter is sent to this site’s server, which looks it up or connects to it for you. Only public addresses can be checked; queries and results are not stored.
About this tool
Look up the DNS records of a domain: A, AAAA, CNAME, MX, NS, TXT, SOA and CAA by default, and SRV, PTR, HTTPS and DS when you tick them. Enter an IP address instead to find its reverse (PTR) name. Use it to check that a record you just added has taken effect, to verify MX and TXT records when setting up email or proving domain ownership, or to see where a domain points.
Each record shows its name, TTL and value, types without records are listed, and the result can be copied in zone file format. The domain is sent to this site’s server, which asks public DNS servers, so you see what the public internet sees, not your hosts file or a company network’s internal DNS. Queries and results are not stored.
How to use it
- Enter a domain such as example.com, or an IP address, in “Domain or IP address”.
- Tick the “Record types” you need. A, AAAA, CNAME, MX, NS, TXT, SOA and CAA are ticked by default.
- Select “Look up”.
- Read the type, name, TTL and value of each record. Types with no records are listed under the table.
- Select “Copy as zone file” to copy the records.
Common questions
I changed a record. Why do I still see the old value?
Public DNS servers may keep an answer in their cache until its TTL, shown in seconds, runs out. Wait for that time to pass and look up again; if the value is still wrong, check that you edited the record at the DNS provider named in the NS records.
What does “does not exist (NXDOMAIN)” mean?
The DNS servers answered that the name does not exist at all: it may be misspelled, the domain may not be registered, or the subdomain was never created. To check the registration, use Whois lookup.
How do I look up SRV, DMARC or DKIM records?
Enter the full name with its underscore labels. For SRV, tick SRV and enter a name such as _sip._tcp.example.com; for DMARC, look up the TXT record of _dmarc.example.com. DKIM keys are TXT records at selector._domainkey.example.com, where your mail provider gives you the selector.
How does a reverse (PTR) lookup work?
Enter an IPv4 or IPv6 address and the tool asks only for its PTR record, whatever types are ticked. If the address has no PTR name, no record is shown.
Is the domain I enter stored?
No. It is sent to this site’s server, which asks public DNS servers for the records and returns them to you; queries and results are not stored.
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