Privacy

Location

Your wall is chosen from the approximate location of your internet connection, which Cloudflare (our host) works out from your IP address. It is usually accurate to a town or city. We snap it to a grid square about 20 km across and use it to pick your wall and to check you're near enough to draw. We never ask your device for GPS, and we never store your location.

A wall's name is the town most of its visitors connect from. We keep a count of town names per wall, nothing tied to a person.

Drawings

Your strokes are public: anyone can see them on the wall, in replays and in pictures people share. Each stroke is saved with its time and a short code made by hashing your IP address with a secret and the date. The code changes every day and can't be turned back into your IP. It lets you undo your own strokes, limits how much ink one person can use, and groups strokes for reports. Strokes and their codes are deleted after seven days.

Reports

When you report a drawing we store which strokes you reported and the same daily code, so one person can't hide a drawing alone. Reports are deleted along with the strokes. We may remove drawings that break the rules sooner.

Analytics

We use Cloudflare Web Analytics, which counts page views without cookies and without tracking you across sites. There are no ads, no other trackers and no accounts.