Privacy
Last updated: October 20, 2026
Who answers for your data
cysticacne.net is run as a standalone site, and the site itself is responsible for the data described here. Questions, requests or complaints about your data go to privacy@cysticacne.net.
What the site records
- Visit counts: the pages you open, the page that sent you here, how long you stay, how far you scroll, which links and buttons you press, and device facts such as screen size, browser language and time zone.
- The lump sorter: your answers stay in your own browser. They are never sent to us. Only the result type travels along inside the analysis link, and only if you press it.
- Server logs: the hosting provider keeps IP addresses, browser types and requested pages to keep the site secure and working.
How the counting works
Your browser sends visit counts to an address on this site, /api/glimpse. From there they go to an analytics provider (EU), which keeps them on servers inside the European Union. Your IP address is passed on so that a rough location can be worked out. A random code in session storage ties together the pages of one visit and is erased when the tab closes, so two separate visits cannot be linked. Counting uses no cookies. Visitors in the EU are only counted after they choose "Allow".
The analysis link
"Start my analysis" and the other analysis links pass through cysticacne.net/cyst-scan and continue to acne.today, a separate paid service. The link tells acne.today that you came from this site, which button you used, and the sorter result if you had one. Anything you give acne.today, such as photos, answers or payment details, is covered by its own privacy policy.
Why we may process data
- Visit counts from EU visitors: your consent. You can change your answer at any time with "Statistics choice" at the bottom of each page.
- Visit counts from other visitors, and server logs: our legitimate interest in a site that is safe and works well.
- Emails you send: so we can reply.
What your browser stores
| Name | What it is for | How long |
|---|---|---|
| cq.count | Your answer to the counting question. Local storage, never sent anywhere. | Until you clear it |
| cq.mode | Light or dark mode, if you change it. Local storage. | Until you clear it |
| cq.dock | Remembers that you closed the bottom bar. Session storage. | Until the tab closes |
| cq.d, cq.v, cq.c, cq.z | Random visit code, visit start and page count for the visit counts. Session storage, not a cookie. | Until the tab closes |
How long we keep it
Server logs are kept for up to 90 days. Emails are kept for as long as it takes to help you, and two years at most.
Who gets data
Only the analytics provider and the hosting provider, each limited to what its task needs. Data is never sold or traded.
Your rights
You may ask to see, correct or delete your data, to get a copy of it, to limit how it is used, or to object to its use. Email privacy@cysticacne.net and you will hear back within four weeks. You can also complain to the Dutch Data Protection Authority (Autoriteit Persoonsgegevens) or to the data regulator where you live.
Changes
If this page changes, the date at the top changes too.