When you register a domain name, your contact information (name, physical address, phone number and email) all go to a public Whois database. Now, this database is completely free and available to anyone who wants to check a specific domain name on the Internet.
The problem is that someone can easily abuse Whois. That’s where private domain registration comes in.
So, do you need a private domain registration? I would say not always, but if you want to:
Avoid unwanted solicitors
Let’s say you have a nice domain name and someone wants it for themselves. So, they check the Whois for your contact information and then keep pestering you to sell them the domain. No matter how many times you tell them that it’s not for sale. To avoid this, simply register the domain privately and prevent them from ever finding your contact information.
Protect your privacy
Whois contains a myriad of information that you might not necessarily want publicly known. For instance, I always wondered about the need to include your physical address in it.
Well, suffice it to say that there are a lot of opportunities for a hacker to use the Whois database for identity theft. With private domain registration, all they will see is a proxy service.
Then I would say, get private domain registration.
If you want to see Whois at work, you can check this Whois in action.