When we've seen problems, some of my clients go there and see green and say "Amazon shows they're fine - it must be your code or something you did or didn't do

When we've seen problems, some of my clients go there and see green and say "Amazon shows they're fine - it must be your code or something you did or didn't do - fix it". Well... it's green but it's not fine. And there's little I can do to demonstrate to someone that it's not code but infrastructure.