Speed Curve Speed Curve is a platform designed to improve the speed of sites. It was created in 2013 by designer and web enthusiast Marc Zeman. Speed Curve genuinely cares about website performance. For this, it provides its users with several site optimization tools. Among these, the performance monitoring tool, which generally evaluates the speed of sites as well as the behavior of users. It also allows you to audit sites, in order to improve poor performance related to SEO. Speed Curve deploys a lot of resources to satisfy its users. Especially since the platform consults nearly 25 million RUM pages per day and has more than 600,000 synthetic tests tested daily.