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.

v35.6.1 URL: https://unpkg.com/sitespeed.io@35.6.1/index.js

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performance web rules har webperf perfmatters navigation-timing browser

chrome-har

Create HAR files from Chrome Debugging Protocol data.

v1.0.1 URL: https://unpkg.com/chrome-har@1.0.1/index.js

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chrome har webperf

analyze-css

CSS selectors complexity and performance analyzer

v2.2.28 URL: https://unpkg.com/analyze-css@2.2.28/lib/index.js

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analysis complexity css stylesheet webperf

phantomas

Headless Chromium-based web performance metrics collector and monitoring tool

v2.13.0 URL: https://unpkg.com/phantomas@2.13.0/lib/index.js

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high performance web sites metrics monitoring phantomas puppeteer chromium headless browser web development webperf

@sitespeed.io/throttle

Throttle your connection

v5.0.1 URL: https://unpkg.com/@sitespeed.io/throttle@5.0.1/lib/index.js

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latency throttle bandwith webperf perfmatters