DNS TTL Calculator
Convert DNS TTL values between raw seconds and human-readable time. Quick presets for common durations.
AdRaw Seconds
The raw TTL value in seconds as used in DNS records.
Quick Presets
Human Readable
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TTL Value
3,600
seconds
= 1 hour
0
Days
1
Hours
0
Minutes
0
Seconds
Common TTL Values
Documentation
How It Works
DNS records include a Time To Live (TTL) value in seconds that controls how long resolvers cache the record. This tool converts between raw seconds and human-readable time for easy configuration.
Lower TTLs (300s) mean faster DNS propagation but more queries to your nameservers. Higher TTLs (86400s) reduce load but slow down changes.
Best Practices
Before migration: Lower TTL to 300s, 24-48h ahead
After migration: Raise TTL back to 3600s or higher
CDN records: Often require low TTLs (60-300s)
MX records: Use 3600s+ for mail stability
Last Updated: February 2026
Frequently Asked Questions
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