Performance Monitoring

Performance monitoring tracks your site's speed and user experience metrics over time. SiteMonitor runs daily Lighthouse audits, measures Core Web Vitals, and alerts you when scores drop. Like PageSpeed Insights on autopilot.

How it works

01

Add your URL

Enter your URL and SiteMonitor starts running Lighthouse audits and measuring Core Web Vitals automatically.

02

Daily performance audits

We run daily performance tests from real browser environments and track every metric over time.

03

Performance alerts

When your Lighthouse score drops or a Core Web Vital crosses the threshold, you get an alert.

What is performance monitoring?

Performance monitoring is the continuous measurement of how fast your website loads and how responsive it feels to users. It goes beyond simple uptime. A site can be "up" but painfully slow, costing you visitors, conversions, and search rankings. Google uses Core Web Vitals as a ranking signal, making page speed directly tied to your SEO performance.

Most teams check PageSpeed Insights manually after a deploy and forget about it. SiteMonitor automates this by running daily Lighthouse audits, tracking every metric over time, and alerting you the moment performance degrades. No more finding out from Google Search Console weeks later.

What you can track

  • Core Web Vitals tracking (LCP, FID, CLS, INP)
  • Daily Lighthouse audits with historical scores
  • Time to First Byte (TTFB) monitoring
  • Page load time tracking across global locations
  • Performance score trend graphs
  • Alerts when scores drop below your threshold
  • Mobile and desktop performance tested separately
  • Recommendations for improving page speed

Frequently asked questions

Core Web Vitals are a set of metrics defined by Google that measure real-world user experience. They include Largest Contentful Paint (LCP) for loading speed, Interaction to Next Paint (INP) for responsiveness, and Cumulative Layout Shift (CLS) for visual stability. Google uses these metrics as ranking signals.
SiteMonitor runs a full Lighthouse audit once per day for each URL you monitor. Core Web Vitals and basic load time metrics are checked more frequently throughout the day. All results are stored with historical data so you can track trends.
Google PageSpeed Insights gives you a one-time snapshot. SiteMonitor runs the same tests automatically every day, tracks scores over time, and alerts you when performance degrades. You don't need to remember to check. We watch your scores for you.
Yes. You can set alert thresholds for any metric. For example, alert me if my Lighthouse performance score drops below 80, or if LCP exceeds 3 seconds. Different thresholds can be set per URL.
Yes. SiteMonitor runs Lighthouse audits in real Chromium browser environments, not simulated network requests. This gives you the same results you'd see in Chrome DevTools or PageSpeed Insights.
No. Performance tests generate one page load per test, the same as a single visitor. Daily tests have zero measurable impact on your server load or analytics.

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