keywords:perfmatters

vanilla-lazyload

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

verlok

published version 19.1.3, a year ago88 dependents licensed under $MIT

239,033

sitespeed.io

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.

soulgalore

published version 38.0.0, 5 hours ago5 dependents licensed under $MIT

17,116

@sitespeed.io/throttle

Throttle your connection

soulgalore

published version 5.0.1, a year ago6 dependents licensed under $MIT

18,313

coach-core

Core package for the Coach.

soulgalore

published version 8.1.1, 7 months ago2 dependents licensed under $MIT

14,275

pagexray

Xray your HAR file and know all about the page

soulgalore

published version 4.4.4, 2 years ago10 dependents licensed under $MIT

14,719

@sitespeed.io/plugin-lighthouse

Lighthouse plugin for sitespeed.io

soulgalore

published version 12.3.0, 6 months ago0 dependents licensed under $MIT

1,835

fresnel

Create and compare web performance reports.

krinkle

published version 1.1.1, 4 years ago0 dependents licensed under $MIT

1,676

plugin-webperf-core

WebPerf plugin for sitespeed.io

7h3rabbit

published version 2025.7.0, 9 days ago0 dependents licensed under $MIT

1,773

@mottor/vanilla-lazyload

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