Simon Willison’s Weblog

5th July 2007 - Link Blog

Clever Caching. Instead of invalidating your cache directly, bump a version number on your model (blog entry or whatever) and use that as part of the cache key. This also gives you dynamic etags for free.

Posted 5th July 2007 at 12:56 am

Recent articles

DeepSeek V4 - almost on the frontier, a fraction of the price - 24th April 2026
Extract PDF text in your browser with LiteParse for the web - 23rd April 2026
A pelican for GPT-5.5 via the semi-official Codex backdoor API - 23rd April 2026

This is a link post by Simon Willison, posted on 5th July 2007.

caching 49 etags 5 memcache 7 michael-koziarski 1

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe