If I create multiple DNS A records for the same hosts, for example:
my-domain.com A 18.104.22.168 3600s my-domain.com A 22.214.171.124 3600s my-domain.com A 126.96.36.199 3600s
Do queries really round robin between the three servers? Is it even?
Let's assume a client requests my-domain.com and gets back
188.8.131.52. Is that then cached for an hour, so every request the client makes will use
184.108.40.206, or will each request grab a random host?
What happens if
220.127.116.11goes down, does DNS automatically take it out, or will requests still route to it in round robin fashion?