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32 packages found
LazyLoad is a lightweight (2.4 kB) and flexible script that speeds up your web application by deferring the loading of your below-the-fold images, videos and iframes to when they will enter the viewport. It's written in plain "vanilla" JavaScript, it leve
- lazyload
- vanilla
- responsive
- images
- picture
- srcset
- sizes
- native
- SEO
- intersectionObserver
- progressive
- performance
- perfmatters
- async
sitespeed.io is an open-source tool for comprehensive web performance analysis, enabling you to test, monitor, and optimize your website’s speed using real browsers in various environments.
Xray your HAR file and know all about the page
GPSI plugin for sitespeed.io
LazyLoad is a lightweight (2.4 kB) and flexible script that speeds up your web application by deferring the loading of your below-the-fold images, videos and iframes to when they will enter the viewport. It's written in plain "vanilla" JavaScript, it leve
- lazyload
- vanilla
- responsive
- images
- picture
- srcset
- sizes
- native
- SEO
- intersectionObserver
- progressive
- performance
- perfmatters
- async
Browser instrumentation helper that makes it easier to capture UX speed metrics
Browser instrumentation helper that makes it easier to capture UX speed metrics
Browser instrumentation helper that makes it easier to capture UX speed metrics
Lighthouse plugin for sitespeed.io
Unofficial Node.js client for the WebPageTest REST API
Core package for the Coach.
Easy performance improvements
Analyze the web performance of your site
Analyze the web performance of your site
Analyze the web performance of your site
Throttle your connection
Analyze the web performance of your site
Performance measurment plugin for gulp based on Phantomas
- gulpplugin
- gulp
- perfmatters
- phantomas
- performance
- speed
- analyze
- website
- website performance tools
- website performance monitoring
- website performance metrics
- website performance optimization
- website performance analyzer
Convert your HAR file to a summary of a page
Command Line Tool for CrUX Rest API
- CrUX
- CrUX API
- Chrome User Experience Report
- Chrome UX Report
- CrUX Report
- Core Web Vitals
- Web Performance
- FCP
- LCP
- FID
- CLS
- First Contentful Paint
- Largest Contentful Paint
- First Input Delay
- View more