Every web shop owner has experienced this: a customer places an order but enters an incorrect or nonexistent address. This is annoying for both parties. Sometimes it takes a long time to correct the error and the customer relationship is damaged. And the return also costs money. To prevent this, Postcode Checker automatically completes the addresses when entering a postcode and house number. The data from Postcode Checker is the same as the official sources and is therefore always up-to-date!