Privacy
Last updated 2026-05-01
The short version: we don't have accounts, we don't store your test results, and the test runs entirely in your browser. The longer version is below.
What we don't collect
- No account, no email, no password — there's nothing to sign up for.
- No test results. The 0–100 score, the metrics, and the live charts are computed in your browser and discarded when you close the tab.
- No browser fingerprinting, no session recording, no canvas or font enumeration.
- No selling or sharing of personal data with third parties.
What does happen during a test
When you click Run stability test, your browser opens a WebRTC peer connection through a public TURN relay and exchanges roughly 4–5 MB of synthetic media for 30 seconds. The TURN server sees standard WebRTC traffic — your IP address, the duration of the connection, and the bytes flowing through it — for the lifetime of the test. Nothing is logged beyond what's needed to keep the relay running.
The optional burst comparison fetches small files from public Cloudflare and Hetzner endpoints. Same story: standard HTTP requests, no additional collection.
Cookies and analytics
Today: three third-party scripts run on this site and the credential service it talks to. They're all listed below; nothing else tracks you.
- Cloudflare Web Analytics — no cookies, no fingerprinting, no personal data, GDPR-compatible by default; aggregated pageview and referrer counts only. See Cloudflare's data policy.
- Sentry (EU-hosted) — captures client-side JavaScript errors so we can fix bugs we can't reproduce locally. Sentry receives only the error stack trace, the URL where it happened, and your browser/OS version. PII is explicitly disabled (
sendDefaultPii: false), and abeforeSendhook strips any cookie or IP-address fields before transmission. - Cloudflare Turnstile — a privacy-friendly CAPTCHA loaded only when you click "Run stability test". It checks whether you're a bot before our credential service issues a TURN credential. No cookies, no cross-site tracking. The widget loads from
challenges.cloudflare.com; see Cloudflare's privacy policy for what they retain.
When ads turn on: we have a Google AdSense unit applied for and pending review. When it goes live we'll show ads on the results page only, below the fold. AdSense uses Google's consent management platform (CMP) — EU/UK/Switzerland visitors will see a banner with "Consent", "Do not consent", and "Manage options" before any personalised-ads cookies are set. Outside the EU, AdSense's standard practice applies.
Phase 1 (later): when we add accounts and a paid tier, we will move to Plausible so we can measure conversion funnels (e.g. test → pricing → checkout) without cookies or personal data. This page will be updated before that change ships.
Affiliate links
Some diagnostic hints link to hardware (Ethernet cables, mesh routers, etc.). When they do, the link may be an affiliate link — if you buy something, we may earn a small commission at no cost to you. The recommendations themselves are based on the test results, not on affiliate payouts.
Data we never see
Because there's no backend collecting test data, the following are not available to us even if we wanted them: your stability score, your jitter / loss / RTT numbers, the apps you tested for, or the diagnostic hints you saw. They live in your browser tab and end with your tab.
Your rights
If you're in the EU, UK, or California, you have rights under GDPR / UK GDPR / CCPA — including the right to access, delete, or port your personal data. Since we don't collect personal data, there is generally nothing to export or erase. If you still want to make a request or have a question, email [email protected].
Changes to this policy
When we change anything material — most likely when ads or accounts launch — we'll update the "Last updated" date at the top and publish a short changelog entry on the About page.