Understanding Results
When a scan completes you land on the Performance Report page. Here’s a quick map of what you’ll find.
Performance score
Section titled “Performance score”At the top of the report you’ll see an Overall Score (0–4) and a letter Grade (A–D). This is a weighted average across six categories:
| Category | What it measures |
|---|---|
| Core Web Vitals | LCP, CLS, INP, FCP, TTFB |
| Page Assets | JS, CSS, image, and total page size |
| Accessibility | Automated WCAG issue count |
| Security | HTTPS, headers, CSP |
| DOM Stats | Node count, tree depth, tag density |
| CO₂ | Estimated carbon emissions per page |
Each category also gets its own grade. See Performance Scores for how grades are calculated.
Report sections
Section titled “Report sections”Core Web Vitals
Section titled “Core Web Vitals”Aggregated CWV measurements across all crawled pages with pass/fail indicators. See Core Web Vitals.
Pages Analysed
Section titled “Pages Analysed”A list of every page the crawler visited. Click any page to open its Page Report for a full breakdown of that specific URL.
Page Leaderboard
Section titled “Page Leaderboard”The best and worst performing pages by overall score, CO₂, accessibility, assets, and security.
AI Recommendations
Section titled “AI Recommendations”AI-generated, prioritised suggestions based on your actual metrics. See AI Suggestions.
Accessibility Overview
Section titled “Accessibility Overview”Total and average accessibility issues across all pages. See Accessibility.
Security Metrics
Section titled “Security Metrics”HTTPS status, mixed content, CSP, and common security header checks. See Security Metrics.
DOM Metrics
Section titled “DOM Metrics”Average DOM node count, tree depth, inline style count, and tag usage across all pages.
GEO Analysis
Section titled “GEO Analysis”AI-agent compatibility scores (Green, Ethical, Open) that measure how well your site can be indexed and understood by AI crawlers. See GEO Analysis.
CO₂ Emissions
Section titled “CO₂ Emissions”Total and average carbon cost per page load. See CO₂ Emissions.
Asset Sizes
Section titled “Asset Sizes”Breakdown of JS, CSS, image, and total payload sizes. See Asset Resources.
Export & Annotations
Section titled “Export & Annotations”Download all page data as a CSV, or add annotations (notes) to the report. See CSV Export and Annotations.
Report Chat
Section titled “Report Chat”Ask questions about your report data using natural language. See Report Chat.
Trends
Section titled “Trends”After you have a few reports you can view the Trends page for your site to see how metrics change over time. Go to your site and click View Trends. See Trends.