Monitoring site speed? You need to know the acronyms: #synth, #CrUX, and #RUM.
— Synthetic monitoring = machines (Lighthouse).
— CrUX = real users in Google Chrome.
— RUM = custom data from all users.
Learn more here: pagespeed.one/en/know-how/...
Which type do you use?
Let's clarify the differences between various types of web speed measurements. We’ll discuss synthetic data (“synth”), Google user data (“CrUX”), and data from all users (“RUM”).
