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😶 We don’t shy from controversial takes, so: don’t track the Performance Score. Why?→ It portrays a measurement based on selected metrics, while other aspects of speed can remain problematic.→ It’s...
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🆕 Product update time!We overhauled the Snapshot Overview (a report for a single performance test) to make it even easier to find specific reasons for sub-par web performance. Here’s what it means for...
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✨ Want to see the report in action? Have a click around the live demo.https://calibreapp.com/tests/e8cf7bb/fe4137b
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Should you fail GitHub checks based on performance budgets? We vote yes. 😎...
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⚡ Setting appropriate Fetch Priorities can improve your Largest Contentful Paint. Try it out on images, scripts, fonts, or CSS to speed up the rendering...
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💻 Terminal outputs should be readable. We recently updated how our one-off test results look. All you need is a console and `calibre test create`.#webperf#perfmatters
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⌛ Did you know that people can only notice changes of more than 20%? Find out how our perception of speed and time relates to web performance, when people’s attention starts to drop, and how to make...
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📦 Need tips on decreasing the size of JavaScript bundles? → Install helpful code editor plugins→ Visualise what goes into your bundle→ Find alternative libraries→ Block chosen packages→ Go...
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😺 You could write your own tool to compare pull requests to production. But why?With Pull Request Reviews, you get:→ Reliable tests and results→ Core Web Vitals assessment→ Assets transferred change...
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Performance Newsletter №140:🔹Psychology of perceived performance by @fox🔹New technique for SVG optimisation by @zachleat🔹Should AVIF be a dominant image format by @timsev...and...
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⚡ Your weekly reminder to check in on Interaction to Next Paint.INP will become a Core Web Vital in March 2024. Check yours and ensure it’s in the...
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⚡ Context-based web performance advice is best advice.Check what steps you can take to optimise each Core Web Vital. No more guesstimating.#webperf#perfmatters
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💖 Anyone can work on web performance. Don’t know where to start? We have a handy introduction guide.#webperf#perfmattershttps://calibreapp.com/blog/get-started-with-performance
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📬 Get most up-to-date performance tools, case studies and articles. Every two weeks. In your inbox.#webperf#perfmattershttps://perf.email/
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⚡ You could spend your day in spreadsheets, or you could receive this performance summary email. Or both. You do you.#webperf#perfmatters
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♻️ Specific fixes to Core Web Vitals are great, but do you have a strategy that will keep good web performance over time?Here’s our take on Core Web Vitals sustainability:→ Set performance goals→ Run...
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📬 Performance Newsletter №141:🔹 Bridging the digital divide with web performance by @TheRealNooshu🔹 Why web performance tools should report on carbon emissions by @fershad🔹 Wikipedia’s worldwide CPU...
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📈 Performance budgets are one of the most effective ways to keep performance within predictable ranges. Which metrics do you have budgets for?#webperf#perfmatters
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🎉 We might be small, but we are focused. We wrote about everything we released in 2023:🔹 PageSpeed Insights test mode🔹 New test dashboards 🔹 Clearer and more actionable Lighthouse audits🔹 Third Party...
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