What is a DNS lookup?

A DNS lookup asks the Domain Name System for records tied to a name. Typical answers include A (IPv4), AAAA (IPv6), MX (mail), TXT, NS, and CNAME values that clients and mail servers use to find services.

How do I check DNS records for a domain?

Enter the domain above, pick a record type, and run the lookup. Compare the result with your registrar or Microsoft 365 DNS blade so you know which copy of the zone is authoritative.

An A record maps a hostname to an IPv4 address. Browsers use it to open websites. Example: www.example.com might point to 93.184.216.34.

What is an AAAA record?

An AAAA record maps a hostname to an IPv6 address. Dual-stack sites publish both A and AAAA so modern clients can prefer IPv6 when available.

Why is my DNS record not resolving?

Common causes include typos, missing records, TTL caching, wrong nameservers after a registrar change, or querying before propagation finishes. Confirm the authoritative NS set, then re-check A or MX here.

This free online DNS lookup tool returns live public DNS answers for a domain so beginners through network administrators can verify name resolution quickly.

How does the DNS Lookup work?

Our server asks public DNS resolvers for the record type you select, then shows the answers on the page. Private and reserved targets are blocked for safety.

How do I use the DNS Lookup?

Type a domain, choose A, AAAA, MX, TXT, NS, CNAME, SOA, or CAA, then tap Lookup DNS. Example chips load popular domains for practice.

Is this DNS Lookup free to use?

Yes. It is free with no sign-up for CCNA students, IT students, engineers, and home-lab use.

Can I use the DNS Lookup on mobile?

Yes. The page is responsive and works in mobile browsers for quick DNS checks on site.

Free DNS Lookup Online, Check A AAAA MX TXT Records

Free DNS Lookup Online, Check A AAAA MX TXT Records | Binary Tech