Performance Testing

WPGrip runs automated Google Lighthouse tests to track your sites’ performance over time.

How It Works

Every day at 1:00 AM UTC, WPGrip runs Lighthouse audits against all production sites for both mobile and desktop viewports.

Metrics Tracked

Metric	Description
Performance	Overall performance score (0–100)
First Contentful Paint	When the first content appears
Largest Contentful Paint	When the largest content element loads
Total Blocking Time	Sum of long-task blocking periods
Cumulative Layout Shift	Visual stability of the page
Speed Index	How quickly content is visually displayed

Viewing Results

Go to any site’s Performance page to see:

• Score trend chart — performance score over time (mobile & desktop)
• Latest audit details — all Core Web Vitals with pass/fail indicators
• Historical comparison — see how scores have changed

Score Ranges

Score	Rating	Color
90–100	Good	🟢 Green
50–89	Needs Improvement	🟠 Orange
0–49	Poor	🔴 Red

Data Retention

Performance data is retained for 30 days.

TIP

Staging sites are excluded from automatic daily tests. You can still trigger manual tests from the site’s performance page.