If your domain is registered with Uniregistry, you can access your DNS Zone from your Manage → NS/DNS Records tab.
You can find detailed tutorials on creating, editing, and deleting DNS records at Uniregistry here: How do I manage DNS records?
Hostinger default DNS records:
If you face any difficulties while managing DNS Zone at your domain provider, it’s best to contact Uniregistry directly. Alternatively, you can transfer your domain to Hostinger so your hosting and domain will be managed from one place 😊