Simon Willison’s Weblog

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22nd March 2026

Research PCGamer Article Performance Audit — A performance audit of the March 2026 PCGamer article on RSS readers reveals severe page bloat, with over 82% of network traffic and transferred bytes traced to ad-tech, tracking, and programmatic advertising scripts. Despite the core content consisting of just 10-15 KB of text and a handful of images (~150 KB total), the page triggers over 431 network requests and 5.5 MB of transfer (18.8 MB decoded) within 60 seconds—ballooning to 200+ MB in Firefox due to autoplay video carousels and…

Stuart Breckenridge pointed out that PC Gamer Recommends RSS Readers in a 37MB Article That Just Keeps Downloading, highlighting a truly horrifying example of web bloat that added up to 100s more MBs thanks to auto-playing video ads. I decided to have Claude Code for web use Rodney to investigate the page - prompt here.

This is a beat by Simon Willison, posted on 22nd March 2026.

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