Worked example
An A lookup returns IPv4 destinations, while MX records identify mail exchangers and their priorities.
DNS Lookup
Query DNS records for any domain name. Get detailed information about A, AAAA, MX, TXT, CNAME, and NS records instantly.
When you select Lookup, the domain name and record type are sent through our server to Cloudflare’s DNS-over-HTTPS resolver. Other calculators run locally. The site also uses privacy-conscious analytics.
Enter a domain name above to perform a DNS query.
Common DNS Record Types
A Records map a domain name to an IPv4 address.
AAAA Records map a domain name to an IPv6 address.
MX Records specify the mail servers responsible for receiving email.
TXT Records often hold machine-readable data such as SPF, DKIM, or DMARC settings.
CNAME Records alias one name to another domain name.
NS Records list the authoritative nameservers for a domain.
How to use DNS Lookup
Query a domain for A, AAAA, MX, TXT, CNAME, NS, or SOA records through DNS-over-HTTPS.
Common mistake
Cached answers and TTLs mean a recent DNS change may not appear everywhere immediately.