Commercial websites use external services to profile and track you to optimise conversions. You, as a visitor, do not need these tools and they only slow you down. UltraBlock automatically blocks these services so websites load faster and your privacy is safe. UltraBlock maintains a crowed sourced database with external services. Our extension shows exactly what is loaded in the background of the websites you visit. You can automatically or manually block servicesand see who want to track you.