Last updated: 1 July 2026
PSP Detector ("the Extension") is a browser extension designed to detect the Payment Service Provider (PSP) used on the current webpage. We value your privacy and are committed to protecting your personal information.
The Extension is designed to minimise data collection. It primarily operates by reading static metadata from the webpage to determine the PSP in use.
To understand which features are used and to improve detection coverage, the Extension may send privacy-preserving, aggregate usage analytics via the Google Analytics 4 Measurement Protocol. This is optional and can be turned off at any time from the Extension's Options page (Settings → "Share anonymous usage analytics").
What may be sent: anonymous feature-usage events (such as
opening the popup, requesting or skipping a scan, opening or exporting
history, and changing settings); for detections, the detected payment
provider's name, type, and a provider-owned evidence hostname (for example
checkoutshopper-live.adyen.com); a randomly generated
identifier, a short-lived session identifier, and the Extension version.
Exports report only the file format and a coarse row-count range.
Coarse environment information: to understand where and
on what platforms the Extension is used, each event also includes a
coarse, country-level location, your timezone, operating system, and
browser interface language. The country is resolved via Cloudflare trace
(www.cloudflare.com/cdn-cgi/trace) and only the two-letter
country code is attached to telemetry events. Raw IP values are not stored
by the Extension, and no city-level or precise location is determined or
sent.
What is never sent: the websites or merchant domains you visit, full URLs, page titles, page content (HTML), raw network request URLs, checkout paths, query strings, form data, payment information, or error stack traces. No browsing history is transmitted.
All information processed by the Extension is temporary and solely used to identify and display the relevant PSP information, including its logo and a short description. Anonymous telemetry events are sent to Google Analytics, and country code resolution requests are sent to Cloudflare as described above.
While we strive to protect your data, no method of transmission over the Internet or electronic storage is 100% secure. However, we ensure that our Extension operates with the highest standards of security practices.
We may update our privacy policy occasionally. We will notify you of any changes by posting the new privacy policy on this page.
If you have any questions or concerns about this privacy policy, please contact us by emailing pspdetector [at] adamstiskala.com.