TTL Description

TTL (time to live) refers to how long the DNS servers in various zones will cache a record.

Suppose the TTL is set to 10 minutes. When the DNS servers in various zones receive a domain resolution request, they will send a request to the authoritative server to get the record and save it on the local server for 10 minutes. Within the 10 minutes, the resolution request will be read from the local cache, and the record value will be obtained again after the cache expires. We recommend you set TTL to 10 minutes under normal circumstances, and the minimum TTL value that can be set varies by plan.