Introducing PostScale -- email API for transactional, inbound, and masked addresses. PostScale

    What Is TTL

    Discover what Time to Live (TTL) means in DNS and how it affects the speed and accuracy of record updates across the internet.

    Time to Live (TTL) is a setting that tells DNS resolvers how long they should cache information before requesting an update. It determines how quickly changes to your DNS records spread across the internet.

    How TTL Works

    When a resolver looks up your DNS record, it stores that information for the duration of the TTL. Once that time expires, it checks back with the authoritative DNS server for the latest data.

    Choosing the Right TTL

    • Short TTLs (e.g., 300 seconds) are best when you expect frequent changes, such as during migrations.
    • Long TTLs (e.g., 86400 seconds) improve caching efficiency and reduce DNS query load.

    Conclusion

    TTL is key to balancing performance and flexibility in DNS management. At dnscale.eu, you can easily configure TTL values to match your needs, ensuring smooth and efficient updates for your domains.