An Address (A) Record is a type of Advanced DNS record that points a domain or subdomain to an IPv4 address. It is commonly used to connect a domain or subdomain to the server hosting a website or another service.

An A Record consists of three main fields: Host, Points To (Address), and TTL (Time To Live).

Host

The Host identifies the domain or subdomain the record applies to.

• Enter @ to point the root domain (for example, rebelexample.com).
• Enter www to point the www subdomain (for example, www.rebelexample.com).
• Enter another value, such as blog, to point a different subdomain (for example, blog.rebelexample.com).

Points To (Address)

The Points To field contains the destination IPv4 address provided by your hosting or service provider. This is the server your domain or subdomain will point to.

TTL (Time To Live)

TTL (Time To Live) determines how long DNS information is cached before it is refreshed. The default value is 3600 seconds (1 hour) and should typically be left unchanged unless your service provider instructs otherwise.

Lowering the TTL does not immediately clear existing DNS caches. Existing cached records continue to use the previous TTL until they expire. Once they expire and the updated record is retrieved, the new TTL is used for future caching.