Intelligent Tracking Prevention 2.3
Note: Read about past updates to this technology in other blog posts about Intelligent Tracking Prevention, the Storage Access API, and ITP Debug Mode. Intelligent Tracking Prevention (ITP) version 2.3 is included in Safari on iOS 13, the iPadOS beta, and Safari 13 on macOS for Catalina, Mojave, and High Sierra. Enhanced Prevention of Tracking Via Link Decoration Our previous release, ITP 2.2, foc
✩ Wikipedia's JavaScript initialisation on a budget
This week saw the conclusion of a project that I've been shepherding on and off since September of last year. The goal was for the initialisation of our asynchronous JavaScript pipeline (at the time, 36 kilobytes in size) to fit within a budget of 28 KB – the size of two 14 KB bursts of Internet packets. In total, the year-long effort is saving 4.3 Terabytes a day of data bandwidth for our users'
Fixing layout instability
Rick Viscomi for Google Web Dev Posted on Sep 18, 2019 • Updated on Sep 30, 2019 • Originally published at web.dev In an earlier post I wrote about measuring Cumulative Layout Shift (CLS) in WebPageTest. CLS is an aggregation of all layout shifts, so in this post I thought it'd be interesting to dive deeper and inspect each individual layout shift on a page to try to understand what could be causi
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Faster Paint Metrics with Responsive Image Optimization CDNs
