Category: DNS & domain

TTL

How long a DNS record may be cached.

TTL (Time To Live) is the time in seconds for which servers may cache a DNS record before checking it again. A low TTL speeds up change propagation, a high one reduces system load. Before a planned migration it is worth lowering the TTL in advance.

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🔗 Related terms

D

DNS

The system that turns domains into IP addresses.

A

A record

Points a domain to the server's IPv4 address.

M

MX record

Points to the server handling the domain's mail.

D

DNSSEC

Protects DNS against spoofed responses.

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