"Should I use synthetic monitoring, real user monitoring, or CrUX?" We hear this question a lot. It's important to know the strengths and limitations of each monitoring tool and what they’re best used for, so we don’t miss out on valuable insights. This post includes: How synthetic and real user monitoring (RUM) work What is CrUX? Is CrUX a substitute for RUM? When and why to use each tool An obscure cheese metaphor Plus a quick survey question at the end! Synthetic and real user monito...