Cookie Policy
Last updated: 18 October 2026
Offshore Theory uses only the cookies the site needs to work, so it does not ask for consent.
| Cookie | Type | What it does | Duration |
|---|---|---|---|
| __Host-ot_session | Strictly necessary | Keeps you signed in to your account. It is set only when you sign in, and needs no consent | 180 days from your last visit, or until you sign out |
What the site keeps in your browser
Besides the cookie, the lessons use your browser's local storage, which is not sent to us with each visit:
| Storage | What it keeps | Duration |
|---|---|---|
| localStorage | Your progress in the course, so you can carry on where you left off. When you are signed in, it is also saved to your account so it follows you to any device | Until you clear it in your browser |
| localStorage | A few interface choices, such as the width of the chart table drawer or a help tip you have already seen, and the dates the site uses to keep your progress in step with your account. These stay in your browser | Until you clear it in your browser |
| sessionStorage | Where you are while moving between some lessons in the same tab | Until you close the tab |
The site does not use advertising or tracking cookies. Visit statistics are collected with Cloudflare Web Analytics, without cookies and without identifying you.
The Stripe checkout page, where you pay, is run by Stripe and uses its own cookies, explained in Stripe's cookie policy (https://stripe.com/cookies-policy/legal).
If we ever add analytics or advertising cookies, we will ask for your consent first and update this page.
You can delete or block cookies in your browser settings; if you block the session cookie, you will not be able to stay signed in.