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| layout | title | description | keywords | nav | image |
|---|---|---|---|---|---|
| startpage | Sitespeed.io - Welcome to the wonderful world of Web Performance | Sitespeed.io is an open source tool that helps you analyze and optimize your website speed and performance, based on performance best practices. Run it locally or use it in your continuous integration. Download or fork it on Github! | sitespeed.io, wpo, webperf, perfmatters, fast, site, speed, web performance optimization, analyze, best practices, continuous integration | start | https://www.sitespeed.io/img/sitespeed-2.0-twitter.png |
Welcome to the wonderful world of Web Performance
Sitespeed.io is a set of Open Source tools that helps make your web pages faster. The coach gives you performance advice based on best practices for your site. Browsertime collects metrics and HAR files from your browser. Chrome-HAR creates a HAR file from Chrome Debugging Protocol data. Compare makes it easy to find regressions comparing HAR files. PageXray converts a HAR file to a usable JSON structure that tells you more about your page. And finally sitespeed.io is the main tool that uses all the previously mentioned tools and add supports for testing multiple pages as well as adds the ability to report the metrics to a TSDB (Graphite and InfluxDB).
Try out sitespeed.io by installing using Docker/npm/yarn (need help?):
Docker
$ docker run --shm-size=1g --rm -v "$(pwd)":/sitespeed.io sitespeedio/sitespeed.io https://www.sitespeed.io/ --video --speedIndex
npm
$ npm install -g sitespeed.io
$ sitespeed.io -h