Last updated: 14 May 2026
ClassMind uses cookies for essential functionality, analytics, and advertising. Strictly necessary cookies are always active. All other cookies require your consent and are only set after you accept them.
Cookies are small text files placed on your device when you visit a website. They allow the site to remember information about your visit. This policy explains what cookies ClassMind uses, why, and how you can control them, in accordance with the UK Privacy and Electronic Communications Regulations 2003 (PECR) and UK GDPR.
We group cookies into three categories. Strictly necessary cookies are always active. Analytics and marketing cookies are only set if you give your consent.
These cookies are essential for ClassMind to work. Under UK PECR, consent is not required for strictly necessary cookies, but we are required to tell you about them.
| Cookie | Purpose | Duration | Set by |
|---|---|---|---|
PHPSESSID |
Keeps you signed in during your browser session. Contains only a random identifier — no personal data is stored in the cookie itself. Without it you would be signed out on every page load. | Session (deleted when you close your browser) | ClassMind |
Analytics cookies help us understand how ClassMind is being used so we can improve it. They collect information about pages visited, time spent, and how users navigate the service. These cookies are only set if you accept analytics cookies.
Tools used: Google Analytics (GA4), Microsoft Clarity.
| Cookie | Purpose | Duration | Set by |
|---|---|---|---|
_ga |
Distinguishes users by assigning a randomly generated number. Used to calculate visitor, session, and campaign data. | 2 years | Google Analytics |
_ga_[ID] |
Used by GA4 to maintain session state and persist measurement data. | 2 years | Google Analytics |
_gid |
Distinguishes users. Stores and updates a unique value for each page visited. | 24 hours | Google Analytics |
_clck |
Persists the Microsoft Clarity User ID and preferences, unique to that site, on the browser. This ensures that behaviour in subsequent visits to the same site will be attributed to the same user ID. | 1 year | Microsoft Clarity |
_clsk |
Connects multiple page views by a user into a single Clarity session recording. | 1 day | Microsoft Clarity |
CLID |
Identifies the first time Clarity saw this user on any site using Clarity. | 1 year | Microsoft Clarity |
MUID |
Identifies unique web browsers visiting Microsoft sites. Used for advertising, site analytics, and other operational purposes. | 1 year | Microsoft |
MR |
Used to check whether to refresh the MUID cookie. | 7 days | Microsoft |
ANONCHK |
Reduces the sampling rate on sites using Clarity and logs whether the user has been found in other Microsoft deployments. | 10 minutes | Microsoft Clarity |
SM |
Used in synchronising the MUID across Microsoft domains. | Session | Microsoft Clarity |
Google Analytics privacy policy: policies.google.com/privacy
Microsoft Clarity privacy policy: privacy.microsoft.com/privacystatement
Marketing cookies are used to measure the effectiveness of ClassMind advertising campaigns and to show you relevant ClassMind ads when you visit other websites. These cookies are only set if you accept marketing cookies.
Tools used: Google Ads (via Google Tag Manager), Meta Pixel (Facebook/Instagram).
| Cookie | Purpose | Duration | Set by |
|---|---|---|---|
_gcl_au |
Used by Google AdSense to experiment with advertisement efficiency across websites using their services. | 90 days | Google Ads |
_gcl_aw |
Stores the last Google Ads click. Used for conversion attribution. | 90 days | Google Ads |
_gac_[ID] |
Contains campaign-related information. Shared between Google Analytics and Google Ads to track conversions. | 90 days | Google Ads |
IDE |
Used by Google's DoubleClick to register and report actions after seeing or clicking a Google ad, to measure the effectiveness of an ad and to present targeted ads. | 1 year | Google (DoubleClick) |
_fbp |
Used by Meta (Facebook) to deliver, measure, and improve the relevance of ads. Identifies browsers to provide advertising and site analytics services. | 90 days | Meta (Facebook) |
_fbc |
Stores the last click attribution information for Facebook ads. | 90 days | Meta (Facebook) |
fr |
Used by Facebook to deliver a series of advertisement products, including real-time bidding from third-party advertisers. | 90 days | Meta (Facebook) |
Google Ads privacy policy: policies.google.com/privacy
Meta privacy policy: facebook.com/privacy/policy
When you load a ClassMind page, your browser fetches fonts from Google's servers (fonts.googleapis.com and fonts.gstatic.com). This is not a cookie, but your browser's IP address and user-agent are sent to Google as part of this request. No persistent cookie is set by Google Fonts.
On checkout pages, a Stripe payment iframe is loaded from stripe.com. Stripe may set its own cookies to prevent fraud and detect suspicious activity. See stripe.com/gb/privacy.
You can change your consent choices at any time:
You can also control and delete cookies directly through your browser:
Note: deleting the PHPSESSID cookie will sign you out of ClassMind. For general guidance, visit ico.org.uk/your-data-matters/online/cookies/.
ClassMind uses Google Consent Mode v2. When you reject analytics or marketing cookies, Google's services operate in a limited mode that does not store identifiable data on your device. Aggregated, non-identifiable signals may still be used by Google for modelling purposes in accordance with their terms.
We may update this policy when we change how cookies are used. Any updates will appear on this page with a revised date. Significant changes will be notified via the consent banner on your next visit.
Questions about this Cookie Policy? Contact us at privacy@classmind.co.uk.
If you are not satisfied with our response, you may complain to the Information Commissioner's Office at ico.org.uk.