Docs
VitalLens Documentation
Everything you need to measure, understand, and improve Core Web Vitals with confidence.
What VitalLens does
VitalLens unifies lab and field performance data into a single report, then translates that data into prioritized fixes and measurable impact.
Who it’s for
Engineers, performance leaders, growth teams, and founders who need reliable, actionable performance insights without noise.
How it measures
We combine Chrome UX Report (real users) with Lighthouse lab analysis to show what’s happening now and what will happen next.
How to use this docs
Start with Getting Started, then read Reading Reports to interpret results. Each feature has a dedicated guide.
At a glance: the VitalLens workflow
- Measure your Core Web Vitals in lab and field for desktop and mobile.
- Diagnose the top blockers and locate the assets or elements causing regressions.
- Prioritize fixes by impact and speed-to-ship, with clear expected gains.
- Monitor improvements over time and catch regressions before users feel them.
- Communicate outcomes through shareable reports and exportable action plans.