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Measuring Network Performance in Mobile Safari

CSS Wizardry

Google has a pretty tight grip on the tech industry: it makes by far the most popular browser with the best DevTools, and the most popular search engine, which means that web developers spend most of their time in Chrome, most of their visitors are in Chrome, and a lot of their search traffic will be coming from Google. Why This Is a Problem.

Network 242
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Preparing For Interaction To Next Paint, A New Web Core Vital

Smashing Magazine

In other words, the data is not looking at your actual web traffic but a simulated environment that gives you an approximate view of traffic when certain conditions are in place. DebugBear actually tests with a slower network, resulting in more accurate data. So, that’s why you’re not seeing INP or FID in your reports.

Traffic 98
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Running A Page Speed Test: Monitoring vs. Measuring

Smashing Magazine

The other issue is that the data I’m getting back is based on lab simulations where I can add throttling, determine the device that’s used, and the network connection, among other simulated conditions. On that note, it’s worth calling out that there are multiple flavors of network throttling. Real usage data would be better, of course.

Speed 82
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How To Optimize Progressive Web Apps: Going Beyond The Basics

Smashing Magazine

You can find a comprehensive Beginner’s Guide To Progressive Web Apps on Smashing Magazine that focuses on building the core of PWAs. Optimizing Based On Network Usage. You can further optimize the loading speed by having the PWA use cache-first networking, prioritizing resources, and use adaptive loading based on network quality.

Cache 126
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Optimizing Video For Size And Quality

Smashing Magazine

A video with large dimensions or a high bitrate will take longer to download and will require a higher speed network to play back smoothly. This leads to longer startup times, and if the network cannot supply the video fast enough, the video will stall during video playback. There is a solution though! Large preview ). Large preview ).

Network 144
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Answering Common Questions About Interpreting Page Speed Reports

Smashing Magazine

Barry Pollard, a web performance developer advocate for Chrome, wrote an excellent primer on the CrUX Report for Smashing Magazine. Chrome DevTools includes a separate “Performance” tab where the testing environment’s CPU and network connection can be artificially throttled to mirror a specific testing condition, such as slow internet speeds.

Speed 100
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The State Of Mobile And Why Mobile Web Testing Matters

Smashing Magazine

These days, with mobile traffic accounting for over 50% of web traffic , it’s fair to assume that the very first encounter of your prospect customers with your brand will happen on a mobile device. Testing the Smashing Magazine website on different devices. LT Browser in action. Large preview ).

Mobile 136