Simon Willison’s Weblog

An Introduction to HTTP Fingerprinting (via) Identifying an HTTP server by probing its HTTP protocol support.

Posted 1st September 2004 at 4:19 pm

Recent articles

V&A East Storehouse and Operation Mincemeat in London - 27th August 2025
The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
Open weight LLMs exhibit inconsistent performance across providers - 15th August 2025

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