Site Behavior Lab

See what a site does, not just what it says.

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Privacy Signal

One controlled visit that records the requests, cookies, and scripts the page loads, up to a recording cap that is flagged when hit.

Transparency index

What websites actually load: measured, not claimed.

The public library covers 98 successfully loaded sites from controlled visits. Each report records observable requests, cookies, and catalogued services from one visit—reproducible evidence, not a privacy score or verdict.

39News & media
22Shopping
17Health
12Government
median catalogued tracking-service requests per site, by category
How coverage and category medians are counted

The committed library attempted 104 real sites. 6 sites only produced failed or block-page primary visits, and 2 successfully loaded sites had at least one request-capped recording that remains visible as lower-bound evidence. Category medians use 97 sites with an eligible, request-complete passive lead visit. Each site counts once, even when a comparison loaded both arms. Requests are also evaluated with the open-source adblock-rust engine and Brave’s default filter lists.

Explore measured evidence

420 public reports are available now. Open existing evidence instantly, or scan a site above for a new controlled visit.

Open report files, PageGraph captures, or comparison tools

PageGraph imports require a .graphml file and its matching .meta.json sidecar. Unsupported evidence families remain censored rather than guessed.