Stop using ridiculously low DNS TTLs | Frank DENIS random thoughts.DNS latency is a key component to having a good online experience. And in order to minimize DNS latency, carefully picking DNS servers and anonymization relays play an important role. But the best way to minimize latency is to avoid sending useless queries to start with. Which is why DNS was designed since day one to be a heavily cacheable protocol. Individual records have a time-to-live, original
JVM の DNS キャッシュを制御する - 平常運転
