Last updated 18 September 2026
Cookie Policy
Rail Crew Tests uses a small number of cookies and browser storage items. None are used for advertising. Analytics only run if you accept them.
What we use
| Name | Type | Category | Purpose |
|---|---|---|---|
| railcrew_session | Cookie, 30 days | Essential | Keeps you signed in (httpOnly, set only after you sign in or buy). |
| cookie_consent | Local storage | Essential | Remembers your analytics choice. |
| railcrew_demo_session_id | Local storage | Essential | Counts free demo plays per exercise so the demo limit works. |
| ref_code | Cookie, 30 days | Functional | Remembers a referral link you followed, to credit the referrer. |
| r999_visitor_id | Local storage | Analytics | Random ID for anonymous page-view analytics. Only used if you accept analytics. |
We also use Vercel Web Analytics, which counts page views in aggregate without cookies or cross-site tracking. When you pay, Stripe's checkout page sets its own cookies for fraud prevention, under Stripe's policy.
Managing cookies
Use the button above to change your analytics choice. You can also clear cookies and site data in your browser settings. Clearing essential items will sign you out and reset saved mock progress on that device.
More detail is in our Privacy Policy.