DNS records are essential elements within the Domain Name System that provide information about a domain's configuration, specifying how requests for that domain should be handled. Common DNS record types include:

• A Record (Address Record): Maps a domain to an IPv4 address.

• AAAA Record (IPv6 Address Record): Associates a domain with an IPv6 address.

• CNAME Record (Canonical Name): Aliases one domain to another, allowing multiple domain names to point to the same location.

• MX Record (Mail Exchange): Identifies mail servers responsible for receiving email on behalf of the domain.

• TXT Record (Text Record): Holds text information and is often used for verification or to provide details about a domain.

• NS Record (Name Server): Specifies authoritative DNS servers for the domain.

• PTR Record (Pointer Record): Used for reverse DNS lookups, associating an IP address with a domain.

These records collectively define how domain names are resolved, direct email traffic, and convey various configuration details for a domain within the DNS system.