In the first 30 days after moving Cronitor to AWS in January, 2015 we collected $535 in MRR and paid $64.47 for hosting, data transfer and a domain name. In the time since we’ve continued to increase our footprint, level-up instances and add more managed services. Despite the AWS reputation as an expensive foot-gun we’ve improved availability while keeping our bill consistently close to 12.5% of revenue. Here’s a look.