Cookie & Storage Policy
Effective Date: March 2026 · Compliant with GDPR, ePrivacy Directive, and CCPA/CPRA
1. Overview & Commitment
Penziv ("we", "our", or "us") believes in absolute transparency regarding how data is stored and processed on your device. When you interact with our clinical diagnostic tools, question bank, and medical calculators, we prioritize client-side execution and local persistence to protect your privacy while ensuring seamless performance.
This Cookie and Storage Policy explains how we use cookies, local storage (HTML5 LocalStorage), and third-party tracking scripts, what categories of data are retained, and how you retain total control over your preferences.
Review or Change Your Preferences
You can update your consent settings or opt out of optional tracking at any time.
2. What Are Cookies and Local Storage?
A cookie is a small text file placed on your device by a website. Cookies allow the site to recognize your browser, maintain security, and remember operational settings.
Local Storage (HTML5 LocalStorage) is a modern web standard that allows web applications to store data directly inside your browser. Unlike traditional cookies, local storage data is never automatically transmitted to servers on every HTTP request, making it significantly faster, lower-bandwidth, and more secure for client-side calculations and offline test caching.
3. Categories of Storage We Use
Strictly Necessary / Essential Storage (Always Active)
These storage elements are essential for Penziv to function. Under Article 5(3) of the EU ePrivacy Directive, essential storage is exempt from requiring prior consent because it is strictly required to deliver the service explicitly requested by you.
| Key / Cookie Name | Type | Provider | Purpose | Duration |
|---|---|---|---|---|
| sb-*-auth-token | LocalStorage | Supabase Auth | Maintains authenticated login state and cryptographic session tokens securely. | Session / Until logout |
| guest_quiz_session | LocalStorage | Penziv Engine | Preserves in-flight guest exam questions and answer choices so your test is not lost on page reload. | Local / Cleared on finish |
| penziv_consent_preferences_v1 | LocalStorage | Penziv Platform | Records your verified privacy and cookie choices. | 1 Year |
| tool_*_data | LocalStorage | Clinical Tools | Retains local input parameters for medical calculators (e.g. MELD, GCS, Wells Criteria). Data never leaves your browser. | Local / User cleared |
| theme | LocalStorage | Penziv UI | Preserves dark/light visual theme preference. | Persistent |
Analytics & Telemetry Storage (Optional)
These cookies help us understand how users navigate Penziv, which clinical calculators are most utilized, and where diagnostic question distractors need refinement. They are only loaded if you provide affirmative opt-in consent.
| Cookie Name | Provider | Purpose | Duration |
|---|---|---|---|
| _ga | Google Analytics (GA4) | Distinguishes unique pseudonymous users across browsing sessions. | 2 Years |
| _ga_* | Google Analytics (GA4) | Maintains session state and aggregated telemetry for the active session. | 2 Years |
Marketing & Campaign Measurement (Optional)
These third-party technologies measure the reach of educational announcements and user onboarding campaigns. They are strictly gated and never execute unless explicit consent is granted. We never share student quiz answers or clinical notes.
| Cookie / Script | Provider | Purpose | Duration |
|---|---|---|---|
| _fbp, fr | Meta Platforms, Inc. | Measures campaign conversion rates and prevents showing redundant ads to existing members. | 90 Days |
4. Global Privacy Control (GPC) & Do Not Sell / Share
Under the California Consumer Privacy Act (CCPA), California Privacy Rights Act (CPRA), and Colorado Privacy Act (CPA), third-party advertising cookies may be classified as "selling" or "sharing" personal information.
Penziv automatically recognizes and respects the Global Privacy Control (GPC) browser signal. If your browser transmits a GPC signal, all marketing tracking scripts are automatically blocked by default, fulfilling your statutory right to opt out of cross-context behavioral tracking without requiring manual interaction.
5. How to Control Cookies in Your Browser
In addition to our on-site preference manager, you can manage or block cookies through your browser settings:
- Google Chrome: Settings → Privacy and security → Cookies and other site data.
- Mozilla Firefox: Settings → Privacy & Security → Enhanced Tracking Protection.
- Apple Safari: Preferences → Privacy → Manage Website Data / Block All Cookies.
- Microsoft Edge: Settings → Cookies and site permissions → Manage and delete cookies.
Please note: Blocking all browser storage will disable essential authentication and require re-authenticating on every visit.
6. Contact Our Compliance Team
If you have questions regarding this Cookie & Storage Policy or our privacy architecture, please contact our Data Protection Officer at: