Full performance analysis: runs Lighthouse, PageSpeed Insights, header check, HTML audit, and CMS detection, then returns a prioritized list of Core Web Vitals improvements.

Run a Lighthouse audit against a URL for mobile or desktop and return scores, Core Web Vitals lab data, and improvement opportunities.

Fetch Core Web Vitals from Google PageSpeed Insights API (real-user CrUX field data when API key is set, Lighthouse lab data otherwise). Returns LCP, CLS, INP, FCP, TTFB.

Inspect HTTP response headers: compression (Brotli/gzip), caching, CDN detection, security headers, and HTTP/2 support.

Parse the HTML of a page and check for render-blocking resources, missing meta tags, script loading strategy, and head optimizations.

Fingerprint the CMS and hosting platform of a website (WordPress, Shopify, Next.js, Nuxt, Astro, etc.).

Scan all images on a page: detect oversized images, wrong formats (PNG/JPEG instead of AVIF/WebP), missing lazy loading, missing width/height attributes, and the LCP hero candidate that should be preloaded.

Use Playwright CSS coverage to find unused CSS, render-blocking stylesheets, and large framework bundles (Bootstrap, Tailwind). Reports per-stylesheet usage percentages and critical CSS opportunities.

Use Playwright JS coverage to find unused JavaScript, render-blocking scripts, large bundles, and third-party scripts (GA4, GTM, Facebook Pixel, Hotjar, etc.) with their impact on load time.

Check font loading strategy: Google Fonts preconnect, CSS @import anti-pattern, font-display values, WOFF2 format usage, and preload hints for self-hosted fonts.

Deep WordPress audit: detects 20+ plugins (Elementor, Divi, WooCommerce, WP Rocket, LiteSpeed Cache, NitroPack, Perfmatters, FlyingPress, Yoast, RankMath, and more) and generates plugin-specific recommendations with estimated LCP impact. Only useful on WordPress sites.

Detect Cloudflare and audit cache status, Brotli compression, HTTP/3, Early Hints, and Polish image optimization. Generates ready-to-use Cloudflare Cache Rules, Transform Rules, and setting recommendations.

Run a full performance analysis and return a human-readable Markdown report with Lighthouse scores, Core Web Vitals, platform detection, and prioritized recommendations. Use this when you need a shareable, narrative summary instead of raw JSON.

Analyze a WordPress site and generate a recommended WP Rocket settings configuration. Accounts for detected page builders (Elementor, Divi), WooCommerce, cache conflicts, and third-party scripts. Returns a JSON settings object with rationale and warnings.

Generate ready-to-implement Cloudflare Cache Rules, Transform Rules, and recommended settings for a domain. Includes CMS-aware cache bypass rules (WordPress admin, WooCommerce cart, Shopify checkout), security header injection, and static asset caching.

Compare two analyze_website JSON reports (before and after a change) and return a delta report: Lighthouse score changes, Core Web Vitals improvements/regressions, newly introduced issues, and resolved issues. Pass the raw JSON output from two separate analyze_website calls.