Every time a resolver asks your DNS server for a record, it consumes resources. A TTL of 3600 ensures that these requests happen only once per hour per resolver, preventing your nameservers from being bogged down by repetitive queries. When Should You Change It?
A translates to exactly one hour . In the context of computer networking and DNS, this value represents the number of seconds a record or data packet is allowed to remain in a cache before it must be refreshed or discarded. What TTL 3600 Means in Practice Duration : 3,600 seconds = 60 minutes = 1 hour. ttl 3600
is the industry-standard balance between flexibility and performance . It provides a 1-hour window that keeps the internet snappy while ensuring that you aren't waiting days for a DNS update to take effect. Every time a resolver asks your DNS server
| Pros | Cons | |-------|------| | Reduces DNS query load | Changes take up to 1 hour to propagate | | Faster page load for repeat visitors | Not suitable for emergency changes | | Standard, widely supported | Too long for dynamic failover setups | A translates to exactly one hour