web-performance

syv ⚡ A dual-threat optimization CLI. Combines local Static Site Generation (SSG) caching and Single Page Application (SPA) payload compression into one lightweight, zero-dependency daemon. Built for Termux and Linux.

PageLab enables web performance, accessibility, SEO, etc testing at scale.

A peer-reviewed knowledge base for frontend engineering decisions, trade-offs, and production-ready practices.

🦃 Black Friday Performance Testing Experiment 🙏

Pagespeed Monitoring - A simple tool to monitor Front-End regression using Google Pagespeed Insight and Regular Expressions.

Projekt för att kontinuerligt övervaka en webbplats mätbara kvalitetsfaktorer.

A curated list of awesome resources for optimizing web performance.

AI-ready PageSpeed Insights & Lighthouse CLI for Core Web Vitals audits, performance fixes, SEO optimization, and before/after verification.

Reproducible research toolkit for benchmarking AVIF, JPEG XL, WebP, and JPEG on web images with perceptual quality metrics, statistical analysis, visual comparisons, and interactive reports.

Type-safe Python HAR model: Pydantic-powered parsing, validation, normalization, and transformation—readying HTTP Archive data for analytics and easy extension.

Lighthouse runner is a Python package that wraps the Lighthouse tool for easy integration into Python projects.

A curated list of awesome resources, tools, and tips to improve web performance.

Semrush Scraper — free, open-source Semrush scraper. Unlimited website traffic, keywords & backlinks as clean JSON, no API key, no proxies.

Agent skills for payments, sign-in, conversion tracking, error reporting and frontend performance.

A Claude Skill that automates web performance audits (LCP, CLS, INP) using web.dev guidelines, delivers structured reports, actionable fix scripts, and incremental analysis.

Performance debugging tool for AdOps and Developers to analyze .har network logs. It automatically isolates ad-tech requests, calculates latency metrics, and generates interactive waterfall visualizations to identify SSP or bidder bottlenecks.

Turn a Lighthouse JSON report into a Core Web Vitals summary with fixes.

Full-site performance X-ray powered by Chrome DevTools Protocol traces

MCP server for the Chrome UX Report — real-user Core Web Vitals for any origin or URL

Revamped version in Python with extra capabilities