Which is the best practise to reduce DNS latency? I'm using the beautiful powerdns DNS server, and i would like to lower down latency between internet client requests and the DNS server response.
I know that working on the DNS zone backend (I'm using mysql) is one of the steps to follow to improve latency, but I'm courious to know if there is also a good rule of thumb to make DNS system resolving lightening fast.
Rising the cache TTL for DNS records is the only solution? Thank you.