Check your HAR

Here you can check any site the same way we do: see which third-party domains it contacts and who receives the data — ad networks, analytics, consent platforms.

The file is not uploaded to any server. The analysis runs entirely in your browser — the HAR is never sent anywhere, we neither see nor store it. You can verify this: open the Network tab in your developer tools and confirm that selecting a file triggers no outbound request.

How to get a HAR: open the site, press F12, go to the Network tab, reload the page, then right-click the request list → “Save all as HAR”.

Recipient classification draws in part on the open DuckDuckGo Tracker Radar data set (CC BY-NC-SA 4.0).