Cookie Policy

Last updated: 15 April 2026

This Cookie Policy explains how Web Matter · Seizure Tracker uses cookies and similar technologies when you visit our website at webmatter.co.uk/seizure-tracker.

1. What are cookies?

Cookies are small text files placed on your device by a website. They are widely used to make websites work, or to work more efficiently, and to provide information to the website owner.

2. Cookies we use

We use two categories of cookies:

Name	Type	Purpose	Duration
`st_auth`	Strictly necessary	Keeps you logged in to the application. Without this cookie the app cannot function.	2 years (rolling — reset on each visit)
`PHPSESSID`	Strictly necessary	Standard PHP session cookie. Used alongside st_auth to maintain your login state.	Session (expires when browser closes)
`cookie_ok`	Functional	Remembers that you have acknowledged our cookie notice.	1 year
`analytics_ok`	Analytics (optional)	Records that you have consented to anonymous analytics tracking. Set only if you click "Accept Analytics".	1 year

3. Analytics cookies

If you accept analytics cookies, we collect the following anonymous data each time you visit a page:

Which page was visited (e.g. "home", "app")
The referring website (e.g. if you came from Google)
Your device type (Mobile, Tablet, or Desktop)
Your country (if available via our hosting infrastructure)
An anonymous daily visitor ID — a one-way hash of your IP address and browser type, rotated every 24 hours. Your raw IP address is never stored.

This data is stored in our own database, not shared with any third party, and is automatically deleted after 1 year. We do not use Google Analytics, Facebook Pixel, or any other external tracking service.

4. What we do not use

Advertising or retargeting cookies
Social media tracking pixels
Cross-site tracking of any kind
Third-party analytics platforms

5. Your choices

Strictly necessary cookies cannot be disabled as they are essential for the application to work. Analytics cookies are optional — you can accept or decline them using the banner shown on your first visit.

You can change your analytics preference at any time:

6. Third-party cookies

When you make a payment, you are redirected to Stripe's secure payment page. Stripe may set their own cookies on their domain. We have no control over these cookies. Please refer to Stripe's Privacy Policy for details.

7. How to control cookies in your browser

You can also control cookies through your browser settings. Please note that disabling all cookies may prevent some parts of the application from working correctly. Guidance for common browsers:

8. Changes to this policy

We may update this Cookie Policy from time to time. The date at the top of this page shows when it was last revised.

9. Contact

If you have any questions about our use of cookies, please contact us at info@webmatter.co.uk.