At MailUp we always develop to improve. Lighthouse is a tool that allows us to analyze our page and returns important metrics that allow us to operate to optimize performance and UX. We have created a tool that, thanks to Docker containers, allows us to quickly analyze our platform and view the data in the Grafana Dashboard. In this talk we will analyze our use case, show the architecture behind our software, how we automated the lighthouse test with Puppeteer in a Docker container and AWS Cloud environment.