# What would Kuuko block on this page?

> Markdown copy of https://kuuko.app/check/ for agents; the HTML page is the source. Last changed 10 November 2026.

Paste the address of any public web page at https://kuuko.app/check/. Our server in Germany opens it like a new visitor and lists every company the page contacts. It does this three times: without touching the cookie banner, after refusing cookies ("Reject all") and after accepting them ("Accept all"). Then we show which of those companies Kuuko blocks.

The check runs in a browser: it needs JavaScript and a small puzzle, so an agent reading this file can't run one from here.

## What this check can't see

- Data the site's own server passes on to other companies. That happens out of sight, between servers.
- Tracking that runs on the site's own address.
- Other pages of the same site, and anything after you log in.
- Results change with country, device and time. We check from a data centre in Germany, which some sites treat differently.

## What we keep

The address and its result stay in memory for up to an hour, then they're deleted. We keep no record of who checked what.

Company names come from AdGuard companiesdb (CC BY-SA 4.0); our adapted copy is at https://kuuko.app/check/company-map.json under the same licence.