Web & Networking

TTL (Time To Live)

How long, in seconds, a DNS resolver may cache a record before re-querying. Low TTL = fast propagation but higher query volume; high TTL = the opposite.

Source

IETF — RFC 1035 — TTL

Related terms

HTTP Status Codes (2xx / 4xx / 5xx)

Three-digit response codes returned by HTTP servers.

Timeout

The maximum time a client waits for a response before giving up.

DNS (Domain Name System)

The internet's address book — translates human-readable domain names like foursight.cloud into IP addresses…

A Record

A DNS record that maps a hostname to an IPv4 address (e.g.

AAAA Record

Maps a hostname to an IPv6 address.

CNAME Record

An alias DNS record that points one hostname to another (e.g.

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