A Record Lookup

Check A records (IPv4 addresses) for any domain across 12 global DNS resolvers in real time. Free DNS propagation checker.

What is an A record?

An A record maps a hostname to an IPv4 address. When you type example.com into a browser, the resolver returns the A record's value (something like 93.184.216.34) and the browser opens a TCP connection to that IP. A records are the most common DNS record type on the public internet.

Common reasons to check an A record

• Verify a domain points to the right web server after a migration or DNS change
• Confirm propagation worldwide before swapping production traffic
• Diagnose why one user can reach a site and another can't
• Check whether a CDN or load balancer is serving the expected anycast IP

FAQ

Can a domain have multiple A records?

Yes. A domain can publish several A records and resolvers typically return all of them. Clients usually pick one at random — this is the simplest form of DNS-based load balancing ("round-robin DNS").

What's the difference between an A record and a CNAME?

An A record points directly to an IPv4 address. A CNAME points to another hostname, which the resolver then has to resolve a second time. CNAMEs cannot be used at the apex of a domain (e.g., example.com itself); A records can.

Why am I seeing different A records from different resolvers?

Either the record was recently changed and some resolvers still have the old value cached, or the domain uses GeoDNS to return different IPs based on the resolver's location.