Access your Control Panel at Registro.br and select the domain you want to point to the site.
Click on the Domain of your choice.
If you are using the Basic Mode, you will need to change it for the Advanced DNS mode, then click Configurar Endereçamento.
Then Click on Modo Avançado.
Confirm the change to Modo Avançado (Advanced DNS Mode).
Now with Modo Avançado habilitated, access Configurar Zona DNS.
Inside your DNS Zone, click on NOVA ENTRADA.
Add the DNS records:
A Records
First A Record: Host / Alias: @ Target / Destination: 35.172.94.1
Second A Record: Host / Alias: @ Target / Destination: 100.24.208.97
CNAME
Host: www Points to: s.multiscreensite.com
Save your changes and done! Now just wait for it to propagate.