If your online store has just been connected to your domain, it might take a while before all pages are converted. Some of the pages however, will continue to contain 'webshopapp.com' in their URL. These are pages that distribute personal data, such as the customer service and checkout areas.
Pages that keep 'webshopapp.com' in their URL are secured with a SSL certificate. All private data exchange between your online store and the database is encrypted. Personal details, payment data and all other private data of your customers are sent/stored in encrypted form. Secure SSL pages (https://yourdomain.webshopapp.com) are required to guarantee the safety of your customers.