Cookies & storage
Last updated 2 October 2026
Like any web app, Propbook keeps a few items in your browser's storage (localStorage, sessionStorage and an offline cache). None of them is shared with another company.
Needed for the app to work
| Item | Set by | Purpose | Duration |
|---|---|---|---|
sb-…-auth-token | Propbook (sign-in via Supabase) | Keeps you signed in | Until you sign out |
propbook_v1 | Propbook | Your journal and settings on this device (the only copy in guest mode) | Until you clear it or delete your data |
Offline cache (propbook-v…) | Propbook service worker | Lets the app open fast and offline | Replaced at each update |
pb_ref | Propbook | A referral code you typed, until you subscribe | Until used or cleared |
pb_econ, pb_sesstz, pb-scan-zones | Propbook | Economic calendar cache, your session time zone, screenshot-scanner settings | Until you clear them |
Your preferences
| Item | Purpose | Duration |
|---|---|---|
propbook_theme_v2, propbook_palette, propbook_side, pb_look_v3 | Theme, colours, sidebar and layout you chose | Until you change or clear them |
pb_open, pb_newsdismiss, pb_pip_last and similar interface keys | Remember which panels are open, which notices you dismissed, Pip's last review | Until you clear them |
pb_noanalytics | Remembers that you switched usage statistics off | Until you switch them back on |
pb_hub_theme | Light or dark theme you chose on the public site | Until you change or clear it |
pb_learn_v1 | Your progress and notes in the free ICT path (Learn). They stay on this device and are never sent to us | Until you clear them |
pb_hub_tv | Remembers that you asked to always load the live charts on Markets | Until you clear it |
Content from other companies, only when you ask
Two parts of the public site show content hosted by other companies. Neither loads anything until you click:
- Lesson videos (Learn) are the Inner Circle Trader's YouTube videos. Before you press play, only a still image is shown (served by
i.ytimg.com, no cookie). Pressing play loads the player fromyoutube-nocookie.com, Google's privacy-enhanced mode, under Google's privacy policy. - Live charts (Markets) are TradingView widgets. They load only when you press “Load live charts”; TradingView may then set its own cookies on its domains, under TradingView's privacy policy.
Anonymous audience measurement
| Item | Purpose | Duration |
|---|---|---|
pb_aid, pb_aid_t | A random identifier (and its creation date) used only to count visits and feature use on Propbook itself. It is never linked to your account, never combined with other data, never shared, and the events it tags contain no trades, P&L or account numbers. | Renewed after 13 months; events deleted after 13 months |
pb_lv, pb_ev_… | Avoid counting the same visit or first-time event twice | End of the browser session / until cleared |
This measurement follows the conditions under which the French data protection authority (CNIL) exempts audience measurement from consent. You can still refuse it at any time: Settings → Your data in the app, or the “Usage statistics” link at the bottom of the home page. If your browser sends a Global Privacy Control signal, nothing is collected.
Removing everything
Clearing this site's data in your browser settings removes all of the above. In guest mode, that also erases your journal — export it first from Settings.
Questions: propbookoff@gmail.com. See also our Privacy Policy.