Case Study

The Challenge

A growing e-commerce platform was struggling with inconsistent page load times and was seeing an increase in bounce rates. Their team knew performance was important but lacked visibility into how their site performed from a user's perspective.

The Solution

The team implemented Zorun to continuously monitor their Core Web Vitals across all critical user journeys. They set up automated testing for both mobile and desktop, with alerts configured to notify them when performance scores dropped below acceptable thresholds.

• Monitored 15 critical pages every hour
• Tracked Core Web Vitals across mobile and desktop
• Integrated performance alerts with Slack
• Established performance budgets for each page type

The Results

Within three months of implementing continuous performance monitoring, the team achieved significant improvements:

• Largest Contentful Paint improved from 3.2s to 1.4s
• Cumulative Layout Shift reduced from 0.25 to 0.05
• Overall Lighthouse Performance score increased from 52 to 89
• Bounce rate decreased by 15%

Key Takeaways

Continuous monitoring allowed the team to catch performance regressions immediately, rather than discovering them weeks later in analytics. The historical data helped them correlate performance changes with deployments, making it easier to identify which code changes impacted site speed.