The biggest bottleneck in web performance today is CPU. Compared to seven years ago, there’s 5x more JavaScript downloaded on the top 1000 websites over the last seven years, and 3x more CSS. Half of web activity comes from mobile devices with a smaller CPU and limited battery power.
Recent articles
- Highlights from my appearance on the Data Renegades podcast with CL Kao and Dori Wilson - 26th November 2025
- Claude Opus 4.5, and why evaluating new LLMs is increasingly difficult - 24th November 2025
- sqlite-utils 4.0a1 has several (minor) backwards incompatible changes - 24th November 2025