@a-techie When using a load balancer in front you have to either use different ports for each of your web server which likely would not be happening in a real scenario or you have to a create new load balancer for every webserver, that would mean 10 load balancers. Application Gateway would be a better option, you get use 1 gateway for upto 5 domains I think, and you won't have to change front facing port, as an example all domains can have 80/443 from single gateway.
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