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Page Speed
Monitoring

Automated Lighthouse audits and Core Web Vitals tracking for every page. Detect performance regressions instantly and keep your website fast 24/7.

What Is Page Speed Monitoring?

Page speed monitoring is the continuous, automated measurement of how fast your web pages load and render. It uses tools like Google Lighthouse to run full performance audits evaluating rendering speed, visual stability, interactivity, and overall page quality.

Google uses Core Web Vitals as a search ranking factor. Even a one-second increase in load time can reduce conversions by up to 7%. Monitoring page speed continuously ensures you catch regressions the moment they happen.

UptimeMonitorX's page speed monitoring runs automated Lighthouse audits via the PageSpeed Insights API. Each audit records Performance, Accessibility, Best Practices, SEO scores, and all Core Web Vitals.

Key Features of Our Page Speed Monitor

Automated Lighthouse Audits

Run Google Lighthouse performance audits automatically. Records Performance, Accessibility, Best Practices, and SEO scores.

Core Web Vitals Tracking

Monitor LCP, CLS, TBT, and FCP - the Core Web Vitals Google uses for search rankings.

Customisable Performance Threshold

Set a minimum Lighthouse performance score (1-100). When the score drops below your threshold, alerts are triggered.

Instant Performance Alerts

Receive alerts via Email, Slack, Telegram, Discord, or WhatsApp when your page speed score falls below the threshold.

Historical Performance Trends

Track page speed scores and Core Web Vitals over time with interactive analytics charts.

Mobile & Desktop Strategy

Lighthouse audits run with the mobile strategy by default - matching Google's mobile-first indexing.

Multi-Category Scoring

Each audit captures Accessibility, Best Practices, and SEO scores alongside performance.

Global Monitoring Regions

Trigger audits from monitoring nodes across North America, Europe, South America, and Asia-Pacific.

Why You Need Page Speed Monitoring

  • Detect page speed regressions before they affect SEO rankings or conversions
  • Satisfy Google's Core Web Vitals requirements for better search visibility
  • Automate Lighthouse audits your team would otherwise run manually
  • Get alerted when a deployment makes your site slower
  • Track historical trends to prove optimization work improved performance
  • Monitor competitor page speeds to benchmark performance
  • Ensure fast page loads on mobile with mobile-first auditing
  • Keep stakeholders informed with clear performance dashboards

How Page Speed Monitoring Works

1

Add your page URL - Enter the URL, select 'Lighthouse' monitor type, and set your minimum acceptable performance score.

2

Automated Lighthouse audits - At every check interval, UptimeMonitorX calls the Google PageSpeed Insights API to run a full Lighthouse audit.

3

Threshold-based alerting - If the performance score drops below your threshold, alerts are sent through your configured channels.

4

Analyse trends and optimise - View historical performance graphs and Core Web Vitals trends to pinpoint root causes of slowdowns.

Frequently Asked Questions

What is page speed monitoring?

Page speed monitoring continuously measures how fast your pages load using automated Lighthouse audits, tracking metrics like LCP, CLS, TBT, and FCP.

How does it differ from uptime monitoring?

Uptime monitoring checks if your site is reachable. Page speed monitoring measures how fast it loads and renders.

Is page speed monitoring free?

Yes. It is included on all plans including the free tier. No credit card or API keys required.

How often are Lighthouse audits run?

At the same interval as your other monitors - every 5 minutes on free, or as frequently as every 60 seconds on paid plans.

What Core Web Vitals are tracked?

LCP, CLS, TBT, and FCP - the same metrics Google uses for search ranking.

Does it affect my website's performance?

No. The audit runs on Google's infrastructure. Your website receives a single page request per audit.

Can I set different thresholds for different pages?

Yes. Each page speed monitor has its own URL and performance threshold.

How does page speed affect SEO?

Google uses Core Web Vitals as a ranking factor. Slow pages are penalized relative to faster competitors.

Start Monitoring Your Page Speed for Free

Set up your first Lighthouse monitor in 30 seconds. Free plan includes full Core Web Vitals tracking.

Get Started Free