Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉
Agent Skills for optimizing web quality based on Lighthouse and Core Web Vitals.
A Chrome extension to measure essential metrics for a healthy site
🔍 Google SEO's full docs as an AI prompt machine — drop it into your AI assistant to map every public route, audit each page against Google's rules, and fix the gaps step by step.
Codex-first SEO skill suite. 26 workflows, 24 TOML agents, DataForSEO/Gemini/Google/Firecrawl integrations, GEO/AEO, CWV, schema, backlinks, local/maps, and deterministic reports.
See and share Core Web Vitals and PageSpeed Insights results simply and easily.
Open-source SEO monitoring. GSC + Site Crawler + Core Web Vitals in one dashboard.
Visualise the Core Web Vitals metric Cumulative Layout Shift (CLS) with a simple GIF.
Example website used in Frontend Masters course "Fundamentals of Web Performance"
A self-hosted RUM Core Web Vitals monitoring platform for Next.js applications.
A tiny (500 bytes) CrUX API wrapper that supports record & history API, handles errors, and provides types.
Drop-in WebP, AVIF, and JPEG XL delivery for TYPO3 images — automatic, no URL or template changes
LazyHTML is an OpenSource Javascript Library that Supports Lazy Loading of any elements without Modifying Code, LazyHTML can lazy load Ads, Videos, Images, Widgets, Javascript, CSS, Inline-Javascript, Inline-CSS & Any HTML.
From zero knowledge to hero website. Design + SEO skills that make Claude your expert co-pilot for building beautiful, high-ranking websites.
🔎 Rust TUI that finds & AI-fixes Lighthouse image issues (CLS, lazy loading, WebP, srcset) across your entire codebase in seconds.
Show the Core Web Vitals from the Chrome User Experience Report in the Google Search Results.
The AI-native technical SEO crawler. Open-source MCP server for Claude / Cursor / Codex — 37 tools, 50+ checks, unlimited pages, WAF detection, ephemeral by design. Built on LibreCrawl. MIT.
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