Lesson planner · classroom toolsCookies and local storage
Last updated: 20 October 2026
The short version
- Our own code sets no cookies and has no analytics.
- Your browser's local storage keeps your lesson plans, class lists and settings so they're there next time. It never leaves your device.
- Google's ads and consent message use cookies. In the UK, the EU and Switzerland, advertising cookies are only used if you agree.
- Change your choice at any time with Privacy and cookie settings at the bottom of every page.
What are cookies and local storage?
Cookies are small text files a website asks your browser to keep; they can be read again later, sometimes by other companies. Local storage is a similar space in your browser where a website saves information for itself. Unlike cookies, it is not sent to the website's server.
What Classfern – Lesson Planner stores on your device
All set by our own code, in local storage. Never sent to us.
| Name | What it does | How long | Needs consent? |
|---|---|---|---|
lp-plans | Your lesson plans (everything you type in the lesson plan maker). | Until you clear it | No (a feature you use) |
lp-current | Which plan was open last, so the maker reopens it. | Until you clear it | No (a feature you use) |
lp-classes | Your class lists (names you type into the classroom tools) and which list is selected. | Until you clear it | No (a feature you use) |
lp-pr-… | What you type on printable templates such as the sub plan, teacher planner, scheme of work or unit plan (one entry per template). | Until you clear it | No (a feature you use) |
lp-seating | Your seating charts (for each class list) and layout settings. | Until you clear it | No (a feature you use) |
lp-screen | The Class Screen layout and the instructions you typed. | Until you clear it | No (a feature you use) |
lp-wheel, lp-picker, lp-groups, lp-timer, lp-timer-view-set, lp-noise | Settings for the wheel, name picker, group generator, timer and noise meter (such as sound on/off, last timer length, noise limit). | Until you clear it | No (remembers your choice) |
lp-chart, lp-cert | What you typed in the behavior chart and certificate makers. | Until you clear it | No (a feature you use) |
lp-objectives, lp-success, lp-ican, lp-exit | What you typed in the teacher tools, so it is there when you come back. | Until you clear it | No (a feature you use) |
lp-theme | Light or dark mode, if you chose one. | Until you clear it | No (remembers your choice) |
consent-interim | Whether you accepted or rejected advertising cookies in our own consent banner, and the date. | Until you clear it | No (remembers your choice) |
Cookies used by Google
Set by Google (on our domain or Google's own domains such as doubleclick.net) for the adverts and the consent message. Names can change; Google publishes the full list of cookies its advertising uses.
| Name | What it does | How long | Needs consent? |
|---|---|---|---|
FCCDCF, FCNEC | Store the choices you make in the consent message. | Up to 13 months | No (stores your consent choice) |
__gads, __gpi | Help AdSense show ads, limit how often you see the same ad, and measure ads. | Up to 13 months | Yes, in the UK, EEA and Switzerland |
__eoi | Helps protect ads against fraud and abuse. | Up to 6 months | Yes, in the UK, EEA and Switzerland |
IDE, DSID, test_cookie (doubleclick.net) | Used by Google to show personalised ads and to check whether your browser accepts cookies. | From a few minutes up to 13 months | Yes, in the UK, EEA and Switzerland |
No other cookies
We haven't added analytics, social media buttons or tracking pixels, and there are no logins, so there are no login cookies.
How to change your choices or clear storage
- Change your ad choices: use Privacy and cookie settings at the bottom of any page.
- Turn off personalised ads from Google everywhere: Google's Ads Settings.
- Clear local storage: in your browser's settings, delete site data for lessonplanner.info. This deletes your saved lesson plans and class lists, so download a backup first (My plans, then Download backup).
- Block cookies: every tool still works.
The rules
In the UK, cookies and local storage are covered by PECR, as amended by the Data (Use and Access) Act 2025; in the EU by the ePrivacy Directive. Storage that is strictly necessary for a feature you use, or that only remembers your choices, doesn't need consent. Advertising cookies do. See our privacy policy.