DNS Lookup
Query all major DNS record types for any domain name. See A, AAAA, MX, NS, TXT, and CNAME records as returned by authoritative nameservers. Useful for debugging email delivery, verifying domain configuration, and investigating infrastructure.
DNS Record Types Explained
DNS (Domain Name System) translates human-readable domain names into the addresses computers use. Different record types serve different purposes:
| Record Type | Full Name | Purpose | Common Use Case |
|---|---|---|---|
A |
Address | Maps domain to IPv4 address | Website hosting, server routing |
AAAA |
IPv6 Address | Maps domain to IPv6 address | Modern IPv6-capable infrastructure |
MX |
Mail Exchange | Specifies email servers | Email routing, spam prevention setup |
NS |
Name Server | Identifies authoritative DNS servers | DNS delegation, registrar management |
TXT |
Text | Arbitrary text data | SPF, DKIM, DMARC, Google/Microsoft verification |
CNAME |
Canonical Name | Domain alias pointing to another domain | CDN configuration, subdomains, service aliases |
SOA |
Start of Authority | Zone management metadata | TTL defaults, zone transfers, serial tracking |
PTR |
Pointer | Reverse DNS - IP to hostname | Email deliverability, logging, abuse investigation |