How do I apply the domain I bought from Google to my Netlify site?

Hi,

I have my Hugo powered personal site hosted at Netlify. I bought a custom domain from Google, and I would like to use it for my Netlify site. Currently I simply do forwarding, the site URL on the browser changes to my Netlify site URL as soon as it lands there. I would like my custom domain to appear on the browser’s site URL bar. How do I achieve that?

I have read many instructions and posts to no avail. When I went to Google Domain, I saw 3 pieces of info: NS, SOA, and CNAME. When I went to Netlify and did “Add a domain”, followed by “Verify”, I got this error message:

Another site is already using this domain.

Domains must be unique across Netlify. Currently another site is using this domain. If you don’t know which site, please [contact support] for guidance.

I am not sure if this is the correct step.
I created 2 custom records on my Google Domain:
Type: A, Name: , Data: 75.2.60.5
Type: CNAME, Name: www, Data: .netlify.app

Hi, I found the answer. I registered the domain to my other, old, Netlify site. The problem is solved now.