Simon Willison’s Weblog

21st December 2021

TIL Adding a robots.txt using Cloudflare workers — I got an unexpected traffic spike to https://russian-ira-facebook-ads.datasettes.com/ - which runs on Cloud Run - and decided to use `robots.txt` to block crawlers.

Posted 21st December 2021 at 11:07 pm

Recent articles

Adding TILs, releases, museums, tools and research to my blog - 20th February 2026
Two new Showboat tools: Chartroom and datasette-showboat - 17th February 2026
Deep Blue - 15th February 2026

This is a beat by Simon Willison, posted on 21st December 2021.

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