Short link domains
Put your own domain in your editable codes' links, like go.yourbusiness.com/K7M2XQ instead of qrsx.net/K7M2XQ. You can also use a whole domain kept just for QR links, like yourbusiness.link/K7M2XQ. Every code keeps opening on qrsx.net too, so nothing you've printed changes. Step-by-step guide
Short link domains come with Pro and Scale
Add a domain
Use a subdomain of a domain you own, like go.yourbusiness.com or qr.yourbusiness.com: your website and email stay as they are. Or use a whole domain you keep just for QR links, like yourbusiness.link.
Move codes
Choose which link goes into your codes' pictures. Copies you've already printed keep working: their old link still opens the code. Download a code again to get the new link in it.