Simon Willison’s Weblog

Return of the HTTP overhead delay. Christian proposes a neat way of improving page performance, by delaying non-essential images such as avatars until after the rest of the page has loaded.

Posted 11th July 2007 at 3:12 pm

Recent articles

2025: The year in LLMs - 31st December 2025
How Rob Pike got spammed with an AI slop "act of kindness" - 26th December 2025
A new way to extract detailed transcripts from Claude Code - 25th December 2025

avatars 1 christian-heilmann 5 http 99 images 14 javascript 731 onload 5 performance 94

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