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.

Studies LH035

Which public instruments observe the internet itself, at which layer, and where does each stop?

In short. Which free public instruments watch the internet itself, from its cables to its traffic, and where does each stop? Reading 48 instruments' own pages in November 2026, every one of ten layers has at least one, but none sees the whole of its layer: routing archives listen from a small minority of networks, traffic is seen one network at a time, the fullest scanning data are paid for or restricted and the evidence behind the exploit-prediction scores read is private; and 11 of the 48 build on another. This describes instruments from their documentation and measures nothing of the internet; a map page drawn from it is in review.

Study, version 0.3, 6 November 2026 studies/LH035/LH035.md

From studies/LH035/ in the repository, last changed 7 November 2026.