Guide
Website Performance Monitoring Best Practices for 2026
Alex Rivera
2025-11-20
9 min read
A slow website is almost as bad as a down one. Here's how to monitor performance proactively.
Why Performance Matters
Google uses Core Web Vitals as a ranking factor. Slow pages hurt SEO and conversions:
- 53% of users abandon sites that take over 3 seconds to load
- A 1-second delay reduces conversions by 7%
- Slow mobile experiences kill trust
Key Metrics to Track
Largest Contentful Paint (LCP)
How fast the main content loads. Target: under 2.5 seconds.
First Input Delay (FID)
Time until the page becomes interactive. Target: under 100ms.
Cumulative Layout Shift (CLS)
Visual stability. Target: under 0.1.
Monitor uptime + performance
Track response times and get alerted when things slow down.
Get Started Free →Setting Up Alerts
Configure latency thresholds in your uptime monitor. Alert when response time exceeds 1 second—before users notice.