Engagement Analytics

VitalSentinel tracks user engagement metrics and correlates them with performance data, helping you understand how site speed affects user behavior.

This page is part of RUM Monitoring and lives at Domain → RUM → Engagement.

How It Works

When engagement tracking is enabled (default), the RUM script captures:

1. Scroll behavior - How far users scroll down the page
2. Click interactions - Rage clicks and clicks on interactive elements
3. Time on page - Active engagement time
4. Form interactions - Form abandonment and completion

What You See

The Engagement page is built around a single performance × engagement correlation chart. You pick one performance metric on one axis and one engagement metric on the other, and the chart shows how they relate across your real users.

Summary Cards

Above the chart you'll find:

• Total Sessions in the selected window
• Good Performance – the share of sessions where the chosen performance metric was in the "good" range
• Average value of the chosen engagement metric

Correlation Chart

Bar chart of session distribution across performance buckets, with a line overlay of the selected engagement metric per bucket.

Performance metric (selectable): LCP, INP, CLS, FCP, TTFB.

Engagement metric (selectable):

Typical patterns:

• Slower LCP → higher bounce rate
• Better INP → more clicks per session and lower rage-click rate
• Lower TTFB → longer time on page

Rage Click Detection

Rage clicks are detected when users click rapidly in frustration:

• 3 or more clicks on the same element
• Within a 2-second window

High rage click rates indicate:

• Broken links or buttons
• Slow-responding UI elements
• Confusing interface design

Finding Rage Click Sources

1. Filter by high rage click rate
2. Check which pages have issues
3. Review click targets
4. Fix unresponsive elements

Form Analytics

The RUM script tracks form focus, field changes, submissions, and abandonment. In the dashboard this surfaces as the Form Abandonment Rate engagement metric – the share of sessions that started filling a form but left without submitting. Select it in the correlation chart to see how performance relates to form abandonment.

Reducing Form Abandonment

• Simplify form fields
• Add progress indicators
• Improve form validation
• Optimize form load time

Filtering Data

The Engagement page shares the standard RUM filter bar:

• Date range – any window, with an optional compare-to-previous-period toggle
• Device – Mobile or Desktop
• Advanced filter – narrow by URL path, country, or browser

See RUM Monitoring for details on the filter bar.

Use Cases

Measuring Content Engagement

Track scroll depth to understand:

• Is content engaging enough?
• Do users read full articles?
• Where do users drop off?

Improving Conversion

Correlate performance with actions:

• Faster pages = more sign-ups?
• Page speed affecting purchases?
• Performance impact on engagement?

Identifying UX Issues

Find problems via:

• High rage click rates
• Low scroll depth despite long content
• High form abandonment
• Low time on page

Best Practices

Set Engagement Goals

Define targets for:

• Minimum scroll depth for key pages
• Maximum acceptable bounce rate
• Target time on page

Monitor Trends

Watch for changes:

• Engagement drops after deployments
• Seasonal patterns
• Device-specific issues

Correlate with Performance

Use correlation data to:

• Justify performance improvements
• Quantify speed impact on business
• Prioritize optimization work

Related Features