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.

Protocol only

Shared services closing their doors

The question

Which shared services of public infrastructure close their doors to an anonymous, identified reader, when, and what do their operators say about why? A weekly panel, 8 November 2026 to 9 February 2027

What the record says

The protocol follows access barriers, robots.txt declarations and operator statements for a fixed panel of 161 shared services over thirteen weeks. The brief reports no measurements yet and discloses that requests leave from an Anthropic address block; later amendments add company-token rules and usageai-training tracking.

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