Domain & DNS

Addresses and name resolution on the internet.

Domain & DNS

Domains are readable names for servers and services. DNS translates these names into IP addresses.

Without DNS there would be no user-friendly web addresses – only number sequences.

Key concepts

Was Domain & DNS auszeichnet

Domains are registered, not purchased.

DNS records determine where a domain points.

Changes can take minutes to hours depending on TTL.

DNS is critical for reachability and performance.

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