How to setup a subdomain using Google Domains
Click Manage next to your domain
In the side panel on the left, click DNS
Select Add a new record under the Custom resource records section
In the box on the left side, type
idSelect CNAME in the drop down menu
Either leave the next box default or input
5mIn the next box, type
scan.polytag.ioFinally, click Add and the new CNAME entry will be added to the list of entries
How to setup a subdomain using GoDaddy
In your Domain Portfolio, click the 3 dots on your domain name and select Edit DNS
Select Add New Record
Select CNAME from the Type menu
Enter
idinto the hostname/prefix of the recordEnter
scan.polytag.iointo the value boxLeave TTL default (1 hour) or set it to your desired “go live” time
Select Save to add your new record
How to setup a subdomain using Namecheap
Select Domain List from the menu on the left
Click Manage on the domain you wish to add a subdomain for
Navigate to Advanced DNS and select ADD NEW RECORD
Select CNAME Record from the drop down list under Type
Add
idas the HostAdd
scan.polytag.ioas the ValueLeave the TTL set to default and select SAVE ALL CHANGES