AWS CloudFront SLA refund/credit policy appears to work as you describe: https://aws.amazon.com/cloudfront/sla/ https://aws.amazon.com/cloudfront/sla/ Monthly

AWS CloudFront SLA refund/credit policy appears to work as you describe: https://aws.amazon.com/cloudfront/sla/ https://aws.amazon.com/cloudfront/sla/ Monthly Uptime: * 99.0% <= uptime < 99.9%: 10% service credit * 95.0% <= uptime < 99.0%: 25% service credit * 0.0% <= uptime < 95.0%: 100% service credit But CloudFlare's Enterprise SLA (25x credit) is similar or maybe even a little bit better (because you get to 100% at 96% instead of 95%). Of course when you are doing an Enterprise deal you can negotiate for whatever terms are mutually acceptable as long as you're willing to pay. In any case, the function of the credit policy is to ensure there is enough pain for the provider to put in place the quality / reliability practices, process and code to protect themselves from losses. IMO most sustainable business pull in much more revenue per hour than 25x their CDN cost. It would be interesting to know how CloudFlare's infra and processes differentiate free, Business and Enterprise customers.