Switching from a regular .com domain to a new .pro domain is simple with IONOS. All you have to do is follow a few steps. First, request an authorization code from your current web hosting provider, you will need this code to make changes to your domain. Next, choose a domain name to go with your .pro domain extension. Remember, the domain name and the .pro extension should complement each other. Once you have chosen your domain name you will have to find out if it is available using the free domain checker from IONOS. Lastly, enter the domain authorization code and click the 'move domain' button. After you have done that you will be able to transfer your existing domain to a .pro domain from IONOS. Don't forget to backup all your files and data before making the transfer, and remember IONOS is here to help if you run into any problems along the way.