Simon Willison’s Weblog

2nd March 2009 - Link Blog

How search.twitter.com uses Varnish. Includes examples of the configuration options they use.

Posted 2nd March 2009 at 5:08 pm

Recent articles

Running Python code in a sandbox with MicroPython and WASM - 6th June 2026
Claude Opus 4.8: "a modest but tangible improvement" - 28th May 2026
I think Anthropic and OpenAI have found product-market fit - 27th May 2026

This is a link post by Simon Willison, posted on 2nd March 2009.

caching 49 search 93 twitter 161 varnish 14

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