BlueCat acquires Men&Mice to boost its DNS, DHCP and IP address management platform and help organizations improve network resiliency and simplify network management.

Glossary Hero

DNS A Record

An A record in DNS is the fundamental record type used to assign an IP address to a DNS name. Devices on their own do not understand how to communicate with human readable names, and so the DNS server acts as a phone book to make sure we’re “calling” the right number.

What is a DNS A record?

The A stands for Address in this case. A records may only be assigned to IPv4 addresses. In the case of IPv6, you will use anAAAA record. The A record will be stored in aDomain NameSystem (DNS) zone on a DNS authoritative server usually residing on a company’s network or at a website host company.

If at your company, you had a server with internal information for your employees, you might want to call it You would give that server a static IP address. Then on your internal DNS server you would create an A record that assigned to an IP address of for example.

Once you’ve registered that DNS record, your employees may start using the DNS name instead of the IP address to navigate to it.

What is a DNS A record example?
What does an A record do?
Where to find the record?

When are A records used?

There is generally only one A record assigned to a host. Other types of DNS records may be used on that same host, though, such as MX (Mail Exchange), TXT (Text), or a CNAME (Canonical Name) record as well.