Lighthouse

Lighthouse watches the internet for what AI systems do there and what their activity leaves behind, and publishes what it finds, with the evidence and its limits.

Record available

The rules of the road, and how we kept them

The question

The rules of the road: what sites ask of automated readers, how well each request is heeded, and how well Lighthouse heeded them on 8 November 2026

What the record says

The record catalogues twenty automated-reader mechanisms and finds published compliance measurements disagree and count different things. Its one-evening Lighthouse audit found 113 breaches under the fixed brief, plus 59 under a single post hoc identification class, for 172 among 3,497 recorded requests.

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Records that refer back here

Navigation summary checked against the retained record. A record being written does not by itself mean that its study or investigation has ended.