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.
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README.md

sitespeed.io

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Website | Documentation | Help us | Twitter

Welcome to the wonderful world of web performance!

sitespeed.io can:

  • analyze your site against web performance best practice rules, crawl your site or test specific URL:s
  • measure how fast your site/pages is using the Navigation Timing API and User Timing API
  • send all your metrics to Graphite
  • benchmark your site against your competitors (comparing specific pages, creating reports, dump the data to Graphite)
  • drive WebPageTest (WPT), meaning collect metrics from WPT, create reports and or send the data to Graphite
  • test your site against your performance budget
  • output TAP or JUnit XML to run in your Continuous Integration tool
  • create configurable HTML reports
  • test your site against Google Page Speed Insights and include the result in the reports
  • create your own post task that will get the result from the analyze and do whatever you want with it (store to a database, create new reports etc)

Check the changelog for the latest changes.

Install

$ npm install -g sitespeed.io

Help us!

Do you want to make sitespeed.io even better? Check out the help us page.

Example reports

Summary: Pages summary: Metrics in Graphite: