DNS Propagation Estimator & Migration Planner

Calculate TTL

1 Hour

Quick Presets

Migration Planner

Plan your TTL reduction before a major DNS change.

1

Current TTL

How long you are currently cached.

s
2

Migration TTL

Target low TTL during the move.

s

Propagation Impact

Max Global Delay 1 Hour
Cache Expiry Timeline Today, 2:00 PM
Now +1h
0% updated Global ISPs dropping cache... 100% updated

Recommended Values by Record Type

  • A / AAAA 1 - 24 Hours

    Standard resolution. High TTL reduces load on nameservers.

  • MX 12 - 24 Hours

    Mail routing rarely changes. High TTL ensures mail delivery resilience.

  • TXT / SPF 1 Hour

    Verification records. Moderate TTL allows for faster typo corrections.

  • CNAME 5 Mins - 1 Hour

    Often used for CDNs, failovers, or dynamic endpoints requiring faster updates.