SiteScopeBeta

Performance & Core Web Vitals

Measure real-world speed, diagnose Core Web Vitals, and eliminate rendering bottlenecks.

—Performance Score
Poor Performance — Critical Speed Bottlenecks Detected

Based on Google PageSpeed Insights benchmarking. Core Web Vitals evaluate loading speed (LCP), visual stability (CLS), and interaction latency (INP).

Largest Contentful Paint (LCP)Good
1.80sTarget: < 2.5s

Measures perceived loading speed. Marks the point when the main page content has likely loaded.

Interaction to Next Paint (INP)Good
85msTarget: < 200ms

Measures website responsiveness and main-thread task execution latency when users interact with the page.

Cumulative Layout Shift (CLS)Good
0.02Target: < 0.1

Measures visual stability. Quantifies unexpected dynamic layout jumps and reflows during page rendering.

Lab Diagnostics (Synthetic Lighthouse Run)

Diagnostic milestones measured in a controlled environment to simulate consistent network conditions.

First Contentful Paint (FCP)
0.90s
Total Blocking Time (TBT)
40ms
Speed Index
1.40s
Accessibility Score
90/100

Crawled Pages Latency Bottlenecks

Identifies internal pages with high server response times (TTFB) during crawling.

No Page Latency Records

Run an audit to measure response times across your website pages.