If your domain is registered with Gandi.net, you can access your DNS Zone from your Domain → DNS Records tab.

You can find detailed tutorials on creating, editing, and deleting DNS records at Gandi.net here: How do I Update My DNS Records?

Hostinger default DNS records:

If you face any difficulties while managing DNS Zone at your domain provider, it’s best to contact Gandi.net directly. Alternatively, you can transfer your domain to Hostinger so your hosting and domain will be managed from one place 😊