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The psychology of site speed and human happiness

Speed Curve

In the fourteen years that I've been working in the web performance industry, I've done a LOT of research, writing, and speaking about the psychology of page speed – in other words, why we crave fast, seamless online experiences. In fairness, that was in the early 2000s, and site speed was barely on anyone's radar.

Speed 134
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2023 Black Friday and Cyber Monday retail and e-commerce IT performance observations

Dynatrace

Over the years, I have watched and written about online retail and e-commerce IT performance. Below is a Dynatrace honeycomb chart depicting the performance of the synthetics tests tracked by the Dynatrace Business Insights team. This had the effect of dramatically speeding up its performance and reducing support costs.

Retail 223
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Mobile Page Speed Testing

MachMetrics

In fact, failing to run a mobile page speed test is the number 1 speed testing mistake we see our users make! If you’re unsure of how your website performs on a mobile device (or even got a poor result on a speed audit), stick with us. All of these things can be achieved with a faster mobile speed.

Speed 67
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Speed Up of the WAL Archiving in PostgreSQL 15

Percona

Of course, that’s a dirty workaround with obvious consequences like huge data loss if a backup need to be restored. Overall, 20x or more performance improvement is reported in the community. We had customer cases where we increased the wal_segment_size from the default 16MB to 1GB to address this problem. Thanks to Community!

Speed 107
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Google Lighthouse Audits – How to use Chrome’s built-in speed testing tool

MachMetrics

However, you have likely used the Web UI that Google uses to allow you to test websites for speed – Google PageSpeed Insights. While PageSpeed Insights focuses solely on speed/performance, Lighthouse offers even more. It offers audits for best practices, accessibility, progressive web apps, SEO and of course, performance.

Google 82
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Dynatrace University: Over a decade redefining virtual learning for digital transformations

Dynatrace

For instance, traditional universities that had never offered virtual courses are now letting students learn remotely. Performance planning. One of our customers, a large insurance company with over 700 Dynatrace users, leverages Dynatrace University as part of its ongoing employee education and performance acceleration program.

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In Defence of DOM­Content­Loaded

CSS Wizardry

I never thought I’d write an article in defence of DOMContentLoaded , but here it is… For many, many years now, performance engineers have been making a concerted effort to move away from technical metrics such as Load , and toward more user-facing, UX metrics such as Speed Index or Largest Contentful Paint. performance.

Metrics 326