How to categorize whois info from fake to real

#1. If the site is Hindi based the info is obviously fake IF THE info is American or European.

#2. If the email address or registrant says the words VPN, PROXY, or PRIVATE, the information is locked by a whois guard software.

#3. If the phone number is the number of a Technical or Abuse Registrant Hotline, it is protected information, rather if it is a regular personal cell line, it is not protected, and legit.