A DNS record is the smallest building block of the DNS (Domain Name System) and a part of the DNS zone. A DNS record contains information about the different functions of a domain (e.g., e-mail service or website) and defines where what is located. For Hostpoint, for example, the DNS must include the information that hostpoint.ch must resolve to the IP address 217.26.48.170. You can think of this as a simple text record in a file or database.
The record is supplemented with additional information and looks like this, for example:
| Domain | TTL (Time to Live) | Class (here Internet) | Type | Value |
|---|---|---|---|---|
| hostpoint.ch. | 300 | IN | A | 217.26.48.170 |
Types of DNS records
There are several different types of DNS records.
The most common types are as follows:
| Type | Description | Content |
|---|---|---|
| SOA | Start of Authority | ns.hostpoint.ch. hostmaster.hostpoint.ch. 20130614 86400 7200 3628800 12096000 |
| NS | Authoritative name server of the domain | ns.hostpoint.ch |
| A | IPv4 address of the domain | 217.26.48.170 |
| AAAA | IPv6 address of the domain | 2a00:d70:0:a::333 |
| CNAME | Canonical name of the domain | Host |
| MX | The mail server used for your domain (mail exchange) | mx1.mail.hostpoint.ch mx2.mail.hostpoint.ch |
You'll find a detailed description of all useable types in the article on permitted DNS records.
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