I’m a bit confused regarding the costs of load balancing. I understand that there is a basic cost + DNS queries to your domain. I find it hard to understand why CloudFlare is looking at the DNS queries because this can be manipulated by third parties.
For example: lets say i’m running a domain and script kiddies are attacking the domain with an small botnet of 500 unique IP’s by sending HTTP requests to it. CloudFlare can simple absorb this traffic with the edge nodes but if I have a load balancer enabled on the domain this would costs me fast amounts of money. Even though the traffic is all absorbed by the edge nodes and i’m guessing it wont even hit the loadbalancers.
Am I understanding this correctly or am I missing something?