What is an A Record

"A" records (also known as host records) are the central records of DNS. These records link a domain, or subdomain, to an IP address. An A record tells a DNS server what specific IP address to map for a host name. It is the most common type of DNS record. An A record is typically used to direct your domain name, for examaple - www.yourdomainname.com - to a web server.

A records and IP addresses do not necessarily match on a one-to-one basis. Many A records correspond to a single IP address, where one machine can serve many web sites. Alternatively, a single A record may correspond to many IP addresses. This can facilitate fault tolerance and load distribution, and allows a site to move its physical location.

  • 3 Users Found This Useful
Was this answer helpful?

Related Articles

Updating Your DNS at NameCheap.com

The purpose of this tutorial is to teach you how to update your DNS (Domain Name Servers)...

Updating Your DNS at ItsYourDomain.com

The purpose of this tutorial is to teach you how to update your DNS (Domain Name Servers)...

Transferring Your Domain from StarGate.com

This tutorial is to help you get started when you are ready to start transferring your domain...

Updating Your DNS at GoDaddy.com

The purpose of this tutorial is to teach you how to update your DNS (Domain Name Servers)...

Transferring Your Domain from Register.com

The purpose of this tutorial is to help you get started when you are transferring your domain...