Cookie Policy
Last updated: 9 March 2026
What are cookies?
Cookies are small text files stored on your device when you visit a website. They help the site remember your preferences, keep you signed in, and understand how you use the service. Some cookies are essential for the site to function; others are optional and require your consent.
How we use cookies
QuantumVerifi uses cookies in three categories. Strictly necessary and functional cookies are always active. Analytics cookies are only set after you give consent via the cookie banner.
Strictly necessary cookies
These cookies are essential for the website to function. They cannot be disabled.
| Cookie | Provider | Purpose | Duration |
|---|---|---|---|
| __clerk_db_jwt | Clerk | Authentication session token | Session |
| __session | Clerk | Active session identifier | Session |
| __client_uat | Clerk | Client-side auth state | 1 year |
| __cf_bm | Cloudflare | Bot detection and DDoS protection | 30 min |
| __stripe_mid | Stripe | Fraud prevention during checkout | 1 year |
| __stripe_sid | Stripe | Checkout session identifier | 30 min |
Functional cookies
These cookies remember your preferences and choices to provide a better experience.
| Cookie / Storage | Provider | Purpose | Duration |
|---|---|---|---|
| qv_cookie_consent | QuantumVerifi | Stores your cookie consent choice | Persistent |
| qv_cookie_preferences | QuantumVerifi | Stores your cookie category preferences | Persistent |
| qv_auth_token | QuantumVerifi | API authentication token (localStorage) | Session |
Analytics cookies (consent required)
These cookies help us understand how visitors use the site so we can improve it. They are only set after you click “Accept all” or enable analytics in the cookie banner. You can withdraw consent at any time by clearing your browser cookies or using the cookie banner settings.
| Cookie / Storage | Provider | Purpose | Duration |
|---|---|---|---|
| ph_* | PostHog | Anonymous session tracking, page views, feature usage | 1 year |
| ph_phc_*_posthog | PostHog | Device identifier for session replay | 1 year |
PostHog data residency: Our PostHog instance is hosted in the EU (Frankfurt, Germany). Analytics data does not leave the EU. We use PostHog's EU cloud at eu.i.posthog.com.
Managing cookies
You can control cookies in the following ways:
- Cookie banner — use our banner (shown on first visit) to accept, reject, or customise cookie categories
- Browser settings — most browsers let you block or delete cookies via settings. Note that blocking essential cookies will prevent sign-in
- Clear storage — delete qv_cookie_consent from your browser's localStorage to reset your preference and see the banner again
Third-party cookies
Some cookies are set by third-party services embedded in our site (Clerk, Stripe, Cloudflare). These providers have their own privacy and cookie policies:
- Clerk: clerk.com/legal/privacy
- Stripe: stripe.com/privacy
- Cloudflare: cloudflare.com/privacypolicy
- PostHog: posthog.com/privacy
Changes to this policy
We may update this cookie policy when we add or remove cookies. The “Last updated” date at the top indicates when the policy was last revised.
Contact
Questions about our use of cookies? Contact us at [email protected]