web-performance

Browser overlay (MV3 extension + bookmarklet) that highlights the LCP element, render-blocking resources, and long tasks on any page, with a fix tip a...

A structured collection of frontend system design notes covering architecture, state, performance, and real-world scenarios

Admin-only WordPress tool that snapshots CSS, JavaScript, plugin/theme assets, external domains, and heavy third-party scripts for Core Web Vitals tri...

WebAudit Pro is an AI-powered website auditing platform that analyzes Performance, SEO, Accessibility, Security, and Functionality. It generates inter...

Rate your LCP, INP and CLS against Google official Core Web Vitals thresholds. Runs in the browser.

Real User Monitoring for Core Web Vitals. MCP server connector for CoreDash.

Sitio web de alta velocidad, auditoría de SEO local ("RPG Rosario") y estrategia de captura de pacientes para la Lic. Belén Basso (BETA Kinesiología).

Engineering case study: a 389,000-SKU B2B marketplace that loads like a landing page - 9,663ms to 18ms cold sort, 6-15ms search, geo-neutral SSR, craw...

Website audit SDK for Node.js. Crawls pages and reports SEO, content, links, images, structured data, security, and crawlability issues. https://safi-...

A structured, opinionated checklist for achieving 90+ PageSpeed scores on WordPress sites — built from 10+ years of real-world frontend and team lead...

Concept eyewear landing page focused on motion, accessibility, and performance

Auditoría de presencia digital, estrategia SEO local Barcelona y prototipo web de alta conversión para mentora de desarrollo personal.

One script tag. WhatsApp, SEO, analytics & cookie consent. Everything a web agency charges extra, for free.

Vue3 + Vite + TypeScript 性能优化实战实验室：10 个交互实验对比优化前后，配合 Web Vitals 仪表盘与 DevTools。

Full Stack Web Developer focused on building fast, modern and conversion-driven websites for businesses. Freelance portfolio showcasing real projects,...

Site institucional e cardápio digital do Zé Mexicano (Fortaleza - CE). Desenvolvido com React 19, TypeScript, TanStack Start (SSR), Tailwind CSS v4 e...

Personal portfolio with projects, thumbnails, and a Win95 aesthetic.

⚡ Real-time JavaScript performance profiler for Chrome — function-level attribution, 30+ anti-pattern detectors, and AI-powered fixes. A free, local...

Free, open-source web image optimizer for SEO & Core Web Vitals (Claude Code plugin) — turns a page's images & videos into responsive AVIF/WebP + VP9/...

Audit any website in seconds - performance, SEO & accessibility via PageSpeed Insights. Zero deps, bilingual EN/ES.

⚡ End-to-end startup growth & launch-readiness audit skill for Claude Code — SEO, analytics, performance, accessibility & marketing for Next.js/React...

AI/LLM Engineer portfolio — Astro + React islands on Cloudflare Workers, with a live "Ask my portfolio" RAG chat. Starlit violet cosmos design system.

Monitor your web performance in style with a lightweight, retro-inspired FPS counter that stays completely out of your way until you need it. FPS Met...

Lightweight browser network speed, latency, and connection stability test. . Live: https://eternalstoneinside.github.io/Wevv/

Real internet speed testing — no plugins, no account

CI gate that checks Core Web Vitals against a performance budget and fails the build on regressions, diffing against a saved baseline. Findings link t...

Browser extension overlaying the page's request waterfall with computed fetch priorities; flags render-blocking and late-discovered critical assets.

Hub de triagem high-ticket e landing page de luxo baseada em Next.js 15 e React 19. Projetada para ancoragem de preço (Visagismo premium), com perform...

Personal portfolio of Bawonsak Petchbunjerdkul — Web Application Consultant & Backend Specialist (EN/TH, Astro 6).

Hybrid full-page caching architecture (nginx srcache + Redis + tuned MariaDB/PHP-FPM) that serves a high-traffic WordPress/PHP site from a small node...

Multi-track CLI for measuring real-world web performance — Lighthouse, Playwright (3 cache scenarios), and Google PSI at scale. HTML reports + branch-...

Plataforma institucional de ginecología y medicina reproductiva. Diseño Ivory & Gold, SEO médico local y reserva de turnos online.

Performance optimization demo using React, Vite & Tailwind CSS with Lighthouse improvements, responsive design, lazy loading and modern frontend best...

A lightweight pixel mosaic lazy loader for static and animated images, with noise effects, auto detection, and progressive enhancement.

Multi-role personal portfolio built with React — features a role-selector landing page with unique themes and tailored content for Software Developer,...

FrontScope - AI驱动的前端项目健康检查工具AI-Powered Frontend Health Checker | Local-first | Auth-aware | Multi-framework | Smart Diagnostics

A mobile-first landing page combining an above-the-fold video sales letter, an embedded booking calendar, and dual lead sync to MailerLite and Zoho CR...

CLI and library that scripts a real scroll in headless Chrome and reports dropped frames, long tasks, forced reflows and non-compositor animations aga...

Chrome DevTools panel that surfaces every CORS preflight, models the browser preflight cache, and flags redundant preflights costing you latency. Mani...

A zero-latency, high-performance network subnetting calculator built with Next.js 16, React, TypeScript, and Tailwind CSS. Engineered to execute sub-m...

Interactive lab demonstrating Core Web Vitals anti-patterns and fixes across 8 real-world performance scenarios, with live metrics overlay.

Automated Performance Auditing & Surgical Refactoring for High-Traffic Platforms

MCP server that audits web performance and tracking hygiene: Core Web Vitals, GA4, GTM and Meta Pixel detection, duplicate tags, SSRF-hardened fetchin...

PySpark data pipeline for Core Web Vitals: Lighthouse, CrUX-like, and RUM analytics with regression detection

Personal portfolio for mehtapratik.com, built on the One System brand. Astro and TypeScript, deployed to Cloudflare Workers, with every asset self-hos...

Codemod that adds fetchpriority and resource hints (preload/preconnect, lazy loading) across HTML, Next.js, Nuxt, and Astro templates.

Открытая методология сборки премиального сайта под ключ с AI-агентом (Claude Code): дизайн-система, SEO, GEO, performance, форма, деплой + рабочий ски...

The 2015 playbook is dead. We build organic revenue engines for D2C brands using Programmatic SEO, Search Generative Experience (SGE) optimization, an...

Kuality CLI — scan any site from your terminal