Cookie & Local Storage Policy — Principium
Document kind: cookies Document version: 2026-08-16.1 Effective date: 16 August 2026 Regulatory basis: Privacy and Electronic Communications Regulations 2003 (PECR reg. 6) and UK GDPR
1. How We Use Cookies
1.1 We use cookies and local storage to provide a secure and reliable experience on the Principium website and portal. 1.2 Under the Privacy and Electronic Communications Regulations 2003 (PECR), non-essential cookies and trackers require your prior, explicit consent before being stored or accessed.
2. Cookie Categories
| Category | Purpose | Legal Basis | Optional |
|---|---|---|---|
| Strictly Necessary | Session tokens, bot protection (Cloudflare Turnstile), theme settings, and remembering your cookie consent choice. | PECR reg. 6(4) / Legitimate Interests | No (always active) |
| Analytics | Aggregated, privacy-preserving page usage metrics to help us understand feature interest and improve documentation. | PECR reg. 6(1) / Consent | Yes (default: OFF) |
| Marketing | Product updates, optional discount notices, and referral attribution. | PECR reg. 6(1) / Consent | Yes (default: OFF) |
3. Cookie Inventory
| Name | Domain | Duration | Purpose |
|---|---|---|---|
pr_cookie_prefs | getprincipium.com | 12 months | Stores your cookie preferences. Contains no identifiers when non-essential cookies are rejected. |
pr_consent_anon_id (localStorage) | getprincipium.com | 12 months | Stored only when analytics or marketing is accepted, allowing auditable consent and reconciliation upon account registration. |
__Host-principium_session | beta.getprincipium.com | 24 hours | Secure host-only session cookie for authenticated portal operations. |
principium-theme (localStorage) | getprincipium.com | Persistent | Remembers your chosen UI interface theme. |
4. Managing and Revoking Consent
4.1 You can review, modify, or withdraw your cookie consent at any time by clicking the Cookie Settings link in the footer of any page on our website. 4.2 Withdrawing consent immediately stops non-essential tracking and deletes anonymous consent identifiers from local storage.