TTL Calculator
Calculate optimal TTL values for your DNS records
Recommended TTL
3600 seconds (1h)
This TTL balances cache efficiency with update flexibility for daily updates.
TTL Guidelines
60-300s
Very short TTL - Use for frequently changing records (load balancing, failover)
300-1800s
Short TTL - Good for records updated daily
1800-3600s
Medium TTL - Standard for most records
3600-86400s
Long TTL - For stable records updated weekly or less
86400s+
Very long TTL - Only for records that rarely change
Tip
Lower TTL values allow faster updates but increase DNS query load. Higher TTL values reduce queries but make changes take longer to propagate.