To connect a domain to your website, first, make sure that your website template is connected to a plan (you should see a little badge with a plan title below the template thumbnail). Then, open website settings.
Go to the Domain tab, and click Connect your own domain.
Insert your domain name and click Continue.
If your domain is not registered at Zyro, you will be asked to update your domain nameservers. Don't worry - it's simple - you can follow this instruction: How to point my domain to Zyro servers?
Zyro nameservers are:
IPv4 – 188.8.131.52
IPv6 – 2400:cb00:2049:1::a29f:1a5e
IPv4 – 184.108.40.206
IPv6 – 2400:cb00:2049:1::a29f:1b95
Note: Please only add the IP addresses if required by your domain host - in most of the cases, the nameservers (dns1.zyro.com and dns1.zyro.com) are enough.