Why a card asks me to "Allow"

A bar at the bottom of the card says the owner can see how many people open the card and from which country, and asks whether to allow a visit record for your device too. It has two buttons, No and Allow.

• Allow: the card also keeps a record of this visit: the country and city, the kind of device, the page that sent you and the link you came from. The record belongs to this visit in this browser tab. It holds no name and no IP address.
• No, or no answer: no visit record is kept.

Whatever you answer, the card counts that it was opened, with your country, and counts taps on its buttons. Your browser also keeps a random number for the card, and the card keeps one line for your device: the kind of phone, the browser's own description, the link you came from and when you last opened the card. See What happens to my details when I open or write to a card?.

The bar appears for visitors in the European Union, the United Kingdom, the wider European Economic Area and Switzerland, and for any visitor whose country the card cannot tell. Visitors elsewhere are not asked, and their visit record is kept the same way.

Your answer is kept in this browser, so you are not asked again. To be asked again, clear this site's data in your browser settings. Visit records are kept for up to 120 days.