In the context of DNS, TTL determines how long a DNS record remains valid before being refreshed

https://www.slideserve.com/gloirsehic/ttl-explained-unlocking-the-tricks-of-dns-time-to-live-for-better-performance

In the context of DNS, TTL determines how long a DNS record remains valid before being refreshed. This setting impacts website loading speed and resource usage, balancing between up-to-date information and caching efficiency for improved performance