DNS Zone file – TTL Value recommendations

TTL Infrastructure records (NS related): 1 – 2 days (86400 – 172800 seconds) Default $TTL: 1 hour – 1 day Minimum Zone TTL: 5 – 10 minutes Maximum Zone TTL: 1 – 2 days SOA Refresh and Retry SOA Refresh: 1 – 4 hours SOA Retry: 15 – 60 minutes SOA Expire SOA Expire: 1 – … อ่านต่อ …