Internet Purchases
Debit cards may also be used on the Internet either with or without using a PIN. Internet transactions may be conducted in either online or offline mode, although shops accepting online-only cards are rare in some countries (such as Sweden), while they are common in other countries (such as the Netherlands). For a comparison, PayPal offers the customer to use an online-only Maestro card if the customer enters a Dutch address of residence, but not if the same customer enters a Swedish address of residence.
Internet purchases can be authenticated by the consumer entering their PIN if the merchant has enabled a secure online PIN pad, in which case the transaction is conducted in debit mode. Otherwise, transactions may be conducted in either credit or debit mode (which is sometimes, but not always, indicated on the receipt), and this has nothing to do with whether the transaction was conducted on online or offline mode, since both credit and debit transactions may be conducted in both modes.
Read more about this topic: Debit Card