How to setup a subdomain using Google Domains

1. Click Manage next to your domain
2. In the side panel on the left, click DNS
3. Select Add a new record under the Custom resource records section
4. In the box on the left side, type id
5. Select CNAME in the drop down menu
6. Either leave the next box default or input 5m
7. In the next box, type scan.polytag.io
8. Finally, click Add and the new CNAME entry will be added to the list of entries

More info on Google setup here

How to setup a subdomain using GoDaddy

1. In your Domain Portfolio, click the 3 dots on your domain name and select Edit DNS
2. Select Add New Record
3. Select CNAME from the Type menu
4. Enter id into the hostname/prefix of the record
5. Enter scan.polytag.io into the value box
6. Leave TTL default (1 hour) or set it to your desired “go live” time
7. Select Save to add your new record