Cookie Policy

Overview

We appreciate your interest in OxyLesson and its related services. This Cookie Policy explains our use of cookies and similar tracking technologies (for example web beacons, pixels, and clear gifs) across our website, mobile apps and services (the "Application"). Terms capitalized but not defined here have the meanings given in our Terms of Service.

What are cookies and tracking technologies?

Cookies are small data files stored on your device when you visit a website. When you return, the website (or another site that recognizes the cookie) reads the information stored in the cookie. Similar tracking technologies place small files on your device or track activity to collect information about your use of the Application, helping us remember your device, preferences and activity to improve navigation and experience.

For more general information about cookies, see allaboutcookies.org.

Types of cookies we use

We categorise cookies both by function and by origin/duration:

By function

• Essential: Required for core site functionality and to provide requested services (e.g., login/session).
• Analytical / Performance: Collect anonymous usage data to help us improve the Application.
• Functional: Remember choices and preferences (for example language or theme).
• Targeting / Advertising: Used to deliver relevant ads and measure their effectiveness.

By origin / duration

• Persistent: Remain until deleted or expire automatically.
• Session: Deleted when you close your browser.
• First‑party: Set by our Application.
• Third‑party: Set by services we integrate with.

How we use cookies and tracking technologies

Cookies help us identify you and your preferences, power analytics and marketing features, secure the Application, record activities and communications, and improve the user experience. Some cookies are set by third‑party providers we use to support analytics, advertising and other services.

Cookies, local storage and tracking items we use

Below are examples of cookies and local storage keys used by the Application:

• AcceptedCookies — Stores whether the cookie notification was dismissed.
• ShowNavbar — Local storage: visibility state of the navigation bar.
• Language — Local storage: selected application language.
• AllWords — Local storage: current cards library.
• Theme — Local storage: light/dark theme setting.
• MATOMO_SESSID — Matomo session id for anonymous analytics.
• _pk_id, _pk_ref, _pk_ses, _pk_cvar, _pk_hsr — Matomo temporary and persistent identifiers.
• _pk_testcookie — Test cookie used to detect cookie support.
• mtm_consent / mtm_consent_removed — Tracks long‑term consent choice.
• mtm_cookie_consent — Tracks consent for storing and using cookies.
• __cf_bm — Cloudflare bot management cookie.
• _clck, _clsk — Microsoft Clarity session and user ids.
• _fbp, Fr — Facebook / Meta advertising cookies.
• _ga, _gid, _gat, _ga_A31234 — Google Analytics cookies.
• _gcl_au — Google Tag Manager advertising efficiency.
• _uetsid, _uetvid, MUID, ANONCHK, SRM_B, IDE, NID — Microsoft / Bing / DoubleClick advertising cookies.
• test_cookie — DoubleClick test cookie to check cookie support.

The list above is illustrative and may change as we add or remove providers. Refer to the relevant third‑party policies for full details about their cookies and practices.

Third‑party services and advertising

We use a range of third‑party services for analytics and advertising, including but not limited to Google (Analytics/Ads), Facebook, Microsoft (Ads/Clarity), Matomo, and others. Each third‑party has its own data practices; please consult their privacy policies for details.

Opting out and managing cookies

You can control cookies via your browser settings (for example disabling, deleting or blocking cookies). Most browsers also offer "private" or "incognito" modes that remove cookies when the session ends. Disabling cookies may limit functionality of the Application.

To opt out of interest‑based advertising you may use tools such as:

• DAA opt‑out
• Network Advertising Initiative
• YourAdChoices AppChoices

For Google Analytics opt‑out instructions visit tools.google.com/dlpage/gaoptout.

Legal basis — EU and UK

Where applicable, we process personal data on the following legal grounds:

• Consent: When you give consent for cookies and tracking.
• Legitimate interests: For analytics, security and service improvement.

Updates to this Cookie Policy

We may update this Cookie Policy at any time by changing the "Effective Date" above. Your continued use of the Application after changes indicates acceptance. We may also send notifications for significant changes.

Questions