DNS Lookup
Enter a domain name and pick a record type (or All) to see its live DNS records.
About the DNS Lookup tool
The Domain Name System is the internet's address book: it maps human-friendly names like example.com to the records that make a site, its mail and its services work. This tool queries fast public resolvers and shows the live records for a domain. You can pick a single type or choose All:
- A / AAAA - the IPv4 and IPv6 addresses the name points to.
- MX - the mail servers that accept email for the domain.
- NS - the authoritative name servers.
- SOA, TXT, CNAME, CAA - the zone's start record, text records (SPF, verification), aliases and certificate-authority rules.
How to use it
- Enter a domain such as
example.com. - Choose a record type, or leave it on All.
- Read the returned records and their values.
It is ideal for verifying a new MX or TXT record after a change, or debugging why a site fails to resolve. Because resolvers cache results, a record can take from minutes to its full TTL to update everywhere. The domain you enter is sent to our server only to run the query, and is not stored.
Frequently asked questions
What do A, MX, NS and TXT records mean?
An A record points a name to an IPv4 address; MX records list the mail servers for a domain; NS records name the authoritative name servers; TXT records hold free-form text such as SPF policies and domain-verification strings.
Why don't I see a record I just added?
DNS results are cached for the record's TTL (time to live). A new or changed record may take from a few minutes up to that TTL, sometimes hours, to appear from all resolvers.
What is the difference between an A and an AAAA record?
An A record maps a name to a 32-bit IPv4 address, while an AAAA record maps it to a 128-bit IPv6 address. A domain can have both.
Can I look up MX records to check email delivery?
Yes. Select the MX type to see which mail servers accept email for the domain and their priority values, which is the first step in diagnosing delivery problems.