web-quality-auditlisted

# Web quality audit Comprehensive quality review based on Google Lighthouse audits. Covers Performance, Accessibility, SEO, and Best Practices across 150+ checks. > **Lighthouse v13 note (Oct 2025+).** Lighthouse has migrated the Performance category from per-opportunity audits to **Performance Insight Audits** ([announcement](https://developer.chrome.com/blog/moving-lighthouse-to-insights)). Several individual audit names this skill historically referenced — *First Meaningful Paint*, *No Document Write*, *Uses Passive Event Listeners*, *Uses Rel Preload* — have been removed or merged. The underlying *advice* is unchanged and still applies; only the report format moved. The CLS-related audits ("layout shifts", "non-composited animations", "unsized images") are now consolidated into a single `cls-culprits-insight`, and image audits are merged into `image-delivery-insight`. Treat older Lighthouse JSON output as a superset, not a contradiction. ## How it works 1. Analyze the provided code/project for quality issues 2. Categorize findings by severity (Critical, High, Medium, Low) 3. Provide specific, actionable recommendations 4. Include code examples for fixes ## Audit categories ### Performance (40% of typical issues) **Core Web Vitals** — Must pass for good page experience: * **LCP (Largest Contentful Paint) < 2.5s.** The largest visible element must render quickly. Optimize images, fonts, and server response time. * **INP (Interaction to Next Paint) < 200ms.** User int