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performance

A collection of 3 posts

automation

Monitoring unused CSS by unleashing the raw power of the DevTools Protocol

Update: Check out headless-devtools, a library for automating DevTools actions from code by leveraging the DevTools Protocol Chrome DevTools is the go-to analysis tool for understanding what's going on under-the-covers of your app and conducting perf-audits. As you are interacting with the site like a real user would, you can

  • Yonatan
Yonatan Nov 13, 2017 • 7 min read
performance

Extracting actionable insights from web perf optimizations

This was originally posted at the 2015 Performance Calendar. A lot of different factors can affect a web page's performance. For this reason, truly effective Web Performance Optimization starts with identifying the most significant perf bottlenecks of your site. This is usually done with tools like DevTools, WebPagetest, PageSpeed Insights,

  • Yonatan
Yonatan Feb 7, 2016 • 5 min read
performance

Releasing "Chunk Scatter", an HTTP chunked encoding analysis tool

Update: I presented a talk about this tool at the 2016 Reversim Summit. Slides can be found here. "Chunk Scatter" (github, demo) is a simple tool I wrote for analyzing HTTP responses that use chunked encoding. It plots each chunk on a scatter graph to help visualize when

  • Yonatan
Yonatan Aug 4, 2014 • 4 min read
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