3.1.16. TTL

The TTL (Time To Live) parameter defines the duration for which DNS records are stored in the DNS system cache. It is used to reduce the load on DNS servers by decreasing the number of requests to them. However, higher values increase the time it takes for changes in domain settings to take effect (DNS servers may provide outdated data from the cache until it is refreshed). Simply put, the larger the TTL, the less the load on the DNS server, but the longer it takes for changes in domain settings to take effect.

Unlike other domain registrars, we set a very short TTL of 15 minutes. This increases the load on DNS servers, as users request data from them more frequently, but it allows for faster changes to the domain name. Changes refer not to the creation of a new record, which occurs within a few minutes, but specifically to modifications (for example, changing the IP address of a site). For most domain registrars, this parameter is set to 8 hours. With us, the client only has to wait 15-30 minutes for the changes to take effect.

For sites with less than a million requests per day, it makes sense to edit the TTL only to decrease it. We set this parameter to the minimum by default, so there is no need to make changes to it.