https://docs.netlify.com/manage/domains/configure-domains/bring-a-domain-to-netlify/
Bring a domain to Netlify DNS | Netlify Docs
Bring an existing domain you’ve already registered to Netlify DNS and set it as a custom domain for your production site.
netlify dnsbringdomaindocs
https://www.netlify.com/blog/2020/03/26/how-to-set-up-netlify-dns-custom-domains-cname-and-a-records/
How to Set Up Netlify DNS - Custom Domains, CNAME, & Records
Learn how to set up DNS on Netlify. Should you choose a subdomain or bare domain? Use Netlify DNS or another DNS provider? See our recommendations to help you...
netlify dnscustom domainsset
https://darn.es/switching-to-netlify-dns/
Switching to Netlify DNS - David Darnes
If you’re onboard with Netlify then maybe you should switch your custom domains to their platform as well. In this tutorial I’ll show you how to move your...
netlify dnsdavid darnes