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Yellow Lab Tools
p/yellow-lab-toolsTest your website: Performance, HTML, CSS and JS
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Gaël Métais

Yellow Lab Tools - Free online test to help speeding up web pages

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Yellow Lab Tools is a 100% free and open-source tool that audits a web page and reports speed issues. It works similarly to Google PageSpeed Insights, but checks more web performance bottlenecks and provides in-depth details to fix them.

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Gaël Métais
Maker
Hey, I'm a page speed junky. I created Yellow Lab Tools a few years ago to help speeding up the web. Today is a big day, as I released a major revamp, version 2.0! YLT has a brand new engine, is more reliable and has better audits than ever. And of course it is still 100% free. [No website should go live without being tested on Yellow Lab Tools]