Google’s John Mueller confirmed on Twitter that having private WHOIS domain name data has no impact on the rankings of your web pages in Google’s search results. Making a domain registration private doesn’t make the domain a part of a link network:
It doesn't change anything.
— ? John ? (@JohnMu) November 24, 2020
Making a domain registration private doesn't make the domain a part of a link network.
— ? John ? (@JohnMu) November 24, 2020
How to optimize your web pages for Google
Use the SEO tools in SEOprofiler to optimize your web pages for high rankings on Google: