Monitoring & Alerting · AuditJet Glossary
RUM (Real User Monitoring)
The collection of performance data from real users visiting a website in production, captured via a JavaScript snippet.
Real User Monitoring collects performance metrics from actual user browsers as they navigate a site. This produces data that reflects the true distribution of user experiences across all device types, browsers, and network conditions. RUM data is the closest approximation to what Google measures via CrUX. AuditJet's RUM script captures LCP, CLS, INP, FCP, and TTFB from real visitors.
Related terms
Proactive website monitoring that simulates user journeys from external locations using scripted browser sessions on a scheduled basis.
Core Web Vitals measurements collected from real users visiting a website in production — as opposed to lab data from controlled test environments.
A public dataset of real user experience data collected by Chrome from opted-in Chrome users across millions of websites.
The time from page navigation start until the largest image or text block visible in the viewport has finished rendering.
Frequently asked questions
What is RUM (Real User Monitoring)?
The collection of performance data from real users visiting a website in production, captured via a JavaScript snippet.
How does AuditJet measure RUM (Real User Monitoring)?
AuditJet runs automated Google Lighthouse audits that surface RUM (Real User Monitoring) scores alongside actionable fix guidance. You can track RUM (Real User Monitoring) trends across all your pages and receive alerts when the metric regresses.
Monitor RUM continuously
AuditJet tracks Core Web Vitals on a schedule with revenue impact alerts — powered by Google Lighthouse and Google PageSpeed Insights.
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