Hi @senkels thanks for reaching out to the Community today!
You can set your forms to display by country domain without using any code.
To do so, go to the form editor for your signup form, select Targeting & Behavior and within the Targeting section, adjust the By URL settings to only display on URLs containing the correct country specific domain for that form. You can also set it to not show on any URLs that contain your other country domains.
If you wanted to target based on visitor’s country instead, that is also an option in the By location settings. Just be aware that the location is judged by IP address and a visitor using a VPN will get the form set for the location their VPN is providing.
I hope this helps, and let us know if you have any questions about these settings.