DNS Lookup Tool
Query any DNS record type for any domain — instantly.
What is a DNS lookup?
DNS (Domain Name System) is the internet's phonebook — it translates human-readable domain names like github.com into IP addresses that computers use to find servers. A DNS lookup queries the DNS records associated with a domain to reveal where it points, how email is handled, security policies, and more.
Different record types serve different purposes. A records map a domain to an IPv4 address. AAAA records point to IPv6 addresses. MX records define which mail servers accept email for the domain. TXT records carry arbitrary text — commonly used for SPF, DKIM, and DMARC email authentication policies. CNAME records create aliases pointing one domain to another. NS records list the authoritative name servers for the domain.
DNS record types explained
| Type | Purpose |
|---|---|
| A | Maps domain to an IPv4 address |
| AAAA | Maps domain to an IPv6 address |
| MX | Mail exchanger — specifies mail servers for the domain |
| CNAME | Alias pointing one domain name to another |
| TXT | Arbitrary text — used for SPF, DKIM, DMARC, domain verification |
| NS | Lists the authoritative name servers for the domain |
| SOA | Start of Authority — admin info, serial, TTL defaults |
| CAA | Certificate Authority Authorization — which CAs may issue SSL certs |
How to use
- Enter a domain name in the input field (e.g.
github.com) — nohttps://needed. - Select a record type from the dropdown, or click a quick-filter pill (A, MX, TXT…).
- Click Look up (or press Enter). Results display in a table grouped by record type.
- To query all common record types at once, leave the type set to ALL.
- Click a different pill to immediately re-query for that specific record type.
Frequently Asked Questions
1.1.1.1/dns-query. Cloudflare's resolver is one of the fastest public resolvers globally. Results reflect the live DNS state as seen by Cloudflare's resolver — they may occasionally differ from your local DNS resolver if records are in the process of propagating.