I'm reading about the differences between a load-balancer implemented at the DNS level vs having a single DNS entry which forwards to a load-balancer.
I found this Q&A particularly useful:
I'm getting the impression from the top answer that DNS based load-balancing isn't reliable. When I run
nslookup on some big sites most of them seem to have multiple IP entries:
nslookup google.com - 1 IP
nslookup amazon.com - 6 IPs
nslookup netflix.com - 8 IPs
Do the results from Amazon and Netflix imply that they are using DNS for round-robin load-balancing?