If your domain is registered with Rumahweb, you can access your DNS Zone from your Domains → My Domains → Nameservers → DNS Management section:
You can find detailed tutorials on creating, editing, and deleting DNS records at Rumahweb here: How to set Rumahweb domain DNS.
Hostinger default DNS records:
If you face any difficulties while managing DNS Zone at your domain provider, it’s best to contact Rumahweb directly. Alternatively, you can transfer your domain to Hostinger so your hosting and domain will be managed from one place 😊