Free Performance Over Time Tracker
Run a full Lighthouse audit and compare your current scores against previous results. Identify regressions after deployments and measure the impact of your optimizations.
Free Performance Over Time Tracker
A single Lighthouse score is a snapshot. Performance tracking over time reveals trends: whether new features are causing regressions, whether optimizations are actually improving scores, and whether scores fluctuate between Google's infrastructure nodes. Our free tracker captures and stores your audit history so you can monitor improvement with data.
Why Single Lighthouse Runs Are Misleading
Lighthouse scores have an inherent variance of 5 to 15 points between consecutive runs on the same URL. Server response times, CDN cache hits, third-party script loading, and network routing all introduce variability. A single 67 score does not tell you whether you improved from 55 last week or regressed from 78 post-deployment. Only a time series of results reveals the true direction of your performance trajectory.
Best practice is to run audits at consistent times — immediately post-deployment, then at weekly intervals. Our free tracker lets you run a fresh Lighthouse audit at any time and compare results across sessions. Track all four categories: Performance, SEO, Accessibility, and Best Practices. When a score drops unexpectedly after a deployment, you can immediately pinpoint whether it's a performance regression or a new accessibility violation. Pair with our Free Mobile Lighthouse Test for baseline establishment.