Address (A) Records are a type of Advanced DNS record that direct a domain or subdomain to an IP address (IPv4) of the server hosting the website. As an example, an A Record is used to point a logical domain name, such as “google.com”, to the IP address of Google’s hosting server, “184.108.40.206”.
A Records consist of the Host Name, Address, and the TTL.
This is the name of the record. Your domain name will automatically be appended to the end (example if you enter www the record will change to www.mywebsitename.com when saved). If you enter @ it will simply be replaced with the root domain (such as, mywebsitename.com).
Address (Points To)
This is the IP address (IPv4) to which the A Record will point.
TTL (Time To Live)
The TTL sets the amount of time in seconds for the record to stay cached before retrieving it again. The default (and lowest accepted) value is 14400 seconds (4 hours). You do not normally need to modify this value.