Caliber is an SEO performance monitoring platform. It was created in 2017 by Ben Schwarz and Karolina Szczur. It helps SEO professionals and marketers monitor the performance of their websites. Indeed, Caliber promotes page speed optimization and allows you to define performance budgets according to the objectives to be achieved. Moreover, the tool saves enough time for users in compiling reports and helps reduce the impact of the code to third parties. It also proposes methods for dividing up work in teams, in order to favor a better distribution of tasks and to allow a better functioning of the pages of sites. Caliber is a platform primarily dedicated to developers, agencies and product teams. It has many users around the world, including the most innovative companies like Buzzfeed.