Free DNS Lookup

Query DNS records for any domain: A, AAAA, MX, TXT, NS, CNAME, SOA. Real-time results from live resolvers.

What This DNS Lookup Shows

Real-time results from live resolvers — every record type, explained.

A Records
Maps your domain to an IPv4 address. Used for web servers, APIs, and most internet-facing services. Every public domain needs at least one A record.
AAAA Records
Maps your domain to an IPv6 address. Critical for modern dual-stack networks and increasingly required by ISPs and cloud providers.
MX Records
Identifies the mail servers responsible for receiving email on behalf of your domain. Includes priority values for failover routing.
TXT Records
Contains SPF policies, DKIM signing keys, DMARC directives, and domain verification tokens for Google, AWS, and other services.
NS Records
Identifies the authoritative nameservers for your domain. Wrong NS records cause complete DNS resolution failure across all services.
CNAME Records
Aliases one domain name to another. Widely used to point subdomains to CDNs, hosting providers, and third-party platforms.

Frequently Asked Questions

What is a DNS lookup?

A DNS (Domain Name System) lookup queries the DNS infrastructure to retrieve records associated with a domain. DNS records map domain names to IP addresses, mail servers, text verification strings, and more. Each record type serves a specific purpose in internet routing.

What is the difference between A and AAAA records?

An A record maps a domain to an IPv4 address (e.g. 93.184.216.34). An AAAA record maps a domain to an IPv6 address (e.g. 2606:2800:220:1:248:1893:25c8:1946). As IPv6 adoption grows, most domains should have both record types configured.

What are MX records used for?

MX (Mail Exchanger) records specify which mail servers are responsible for receiving email for a domain. Each MX record has a priority value — lower numbers mean higher priority. If the primary mail server is down, email is routed to the next highest priority server.

What do TXT records contain?

TXT records contain arbitrary text data associated with a domain. Common uses include SPF records (email authentication), DKIM keys, DMARC policies, domain ownership verification (for Google, AWS, etc.), and other machine-readable data.

How long do DNS changes take to propagate?

DNS changes propagate based on TTL (Time To Live) values set on records. Typical TTLs range from 5 minutes to 48 hours. During propagation, different resolvers worldwide may return old or new values. Use our DNS Propagation Checker to see global propagation status.

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