University of Helsinki · Digital Geography Lab
Cookies, Local Storage and Technical Services
Version 1.0, 8 October 2026
1. Necessary storage on your device
The survey uses no advertising or tracking cookies. It stores one strictly necessary item in your browser’s local storage:
| Item | Provider | Purpose | Content | Kept |
|---|---|---|---|---|
| Anonymous survey session | Lovable Cloud (Supabase) | Keeps your unsubmitted answers connected to you so you can continue after refreshing or returning | Random anonymous identifier | Browser local storage, until you clear it |
Your answers themselves are stored in the survey database, not on your device. Cloudflare Turnstile may set a short-lived technical value needed only to complete the automated-submission check.
2. Analytics and advertising
The survey does not use advertising trackers, social-media pixels, behavioural advertising or session recording.
3. Technical services
To run the survey, your browser or our server communicates with the following services:
| Service | Provider | Purpose | Data processed |
|---|---|---|---|
| Application hosting and delivery | Lovable and Cloudflare | Delivers the survey pages to your browser and runs its server functions | IP address and browser information in the course of delivering pages; basic technical error reports |
| Database and anonymous sign-in | Lovable Cloud, provided by Supabase (database in London, United Kingdom) | Stores survey answers and map points | Anonymous identifier, survey answers, map points, quality information |
| Map images | OpenStreetMap Foundation | Shows the map | IP address, browser information and the map area being viewed |
| Place search and address lookup | OpenStreetMap Nominatim | Finds places you search for and identifies the city of each saved point | Search words and point coordinates, sent from our server (not your IP address) |
| Automated-submission check | Cloudflare Turnstile | Checks that a person, not a program, is taking the survey | IP address and browser signals, processed by Cloudflare |
| Raffle winner contact | University of Helsinki email | Contacts raffle winners | Winner email address |
All of these services are required for the survey to work. Transfers and safeguards are described in section 11 of the Privacy Notice.
4. Managing browser data
You can remove locally stored survey data through your browser settings.
Removing browser data before submission means an unfinished survey can no longer be continued.