Odoo Website Redirection to Custom Domain

I need assistance redirecting my Odoo website to a custom domain purchased from Hostinger. I've created the site but am unsure about the DNS settings.

Key tasks include:
- Configuring the necessary DNS settings
- Setting up the redirection to my custom domain

As I am not confident in my understanding of DNS settings, I require a professional who can not only set this up correctly, but also explain the process to me for future reference.

Ideal skills include:
- Experience with Odoo
- Knowledge of DNS configurations
- Familiarity with Hostinger
- Strong communication skills