Real User Monitoring

Real User Monitoring (RUM for short) results in so-called field data. That's because Real User Monitoring -whether your Core Web Vitals data or collected yourselves- results in data collected from real users. This data is collected 'in the field'.

RUM data is convenient in different ways:

  • flexibility
    Most RUM providers allow for flexibility, tracking additional information from your real users
  • deep diving
    it allows for deep-diving, finding exact root causes of issues that you see in (Google's) aggregated data (such as PageSpeed Insights or Google Search Console).
    Additionally, you can look into other percentiles besides 75th percentile that Google is using for their Web Vitals.
  • A/B testing
    By using custom dimensions, performance consultants and other site speed experts can perform pagespeed A/B tests and see if an adjustment came with a UX improvement (and by how much)

Who should use RUM?

The short version: everyone should use RUM. But these blogpost are explaining it in more detail:

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