Yes. Existing QR Codes continue to work with the old domain and newly created ones will contain the domain you have selected.
Custom subdomains of qrplanet.com with Starter and Premium Plan
If a QR Code from a paid account is scanned with an iPhone instead of mycompany.qrplanet.com the domain qrplanet.com is shown. In the integrated scanner of your iPhone sometimes the preview only shows the top-level domain qrplanet.com without the subdomain. This is mostly the case when your choosen subdomain is longer than 3 characters.
Full custom domain with the white label plan
If you want your own domain to be displayed, we recommend our White Label QR Code Manager. There you can run our platform under your own domain e.g. qr.mycompany.com.
If you create a QR Code and then scan it with an iPhone, the domain mycompany.com will be displayed in the preview instead of qrplanet.com. You can upgrade your current plan to the white label plan at any time in your account settings.