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Check WHOIS Data of Domain Name or IP Address: How-to Guide

When you want to learn about a specific website’s origins, the key is to check WHOIS data. Think of it like an ID card for websites. It provides essential details about a domain name and its owner. But what does it show, and why is it important? Let’s break it down.

What is WHOIS Data?

Whenever you check WHOIS data, you dive into a digital database revealing essential domain information. Like a car with a registration number, every domain has unique details. “WHOIS” (pronounced as “who is”) refers to a protocol for querying databases to obtain domain registration information.

Details You’ll Discover About Domain Names

When you check the WHOIS data of a domain name, you’ll typically get the following information (though details might vary depending on the domain registrar and the top-level domain):

Domain Name: The name of the domain you’re looking up.

Registry Domain ID: A unique ID assigned to the domain by the domain registry.

Registrar: Domain Registrar is the organization that registers the domain name.

Registrar WHOIS Server: The address of the registrar’s WHOIS server where further detailed information can be found.

Registrar URL: The website of the registrar.

Updated Date: The last date when the domain details were updated. One of the main features of checking WHOIS data.

Creation Date: Registration date of the domain.

Registry Expiry Date: The date when the domain registration will expire.

Registrar Registration Expiration Date: Another representation of the domain’s expiration date.

Domain Status: The domain’s current status (e.g., “active,” “pending transfer”, “expired”).

Registrant Organization: The name of the organization that has registered the domain (may be hidden due to privacy protections).

Registrant Name: The name of the person or entity who has registered the domain (may be hidden due to privacy protections).

Registrant Street, City, State, Postal Code, Country, Phone, Fax, Email: Contact details of the domain owner (these details are often redacted for privacy).

Name Servers: The domain name servers (DNS) associated with the domain. These servers translate the domain name into an IP address.

DNSSEC: Indicates whether the domain has DNS Security Extensions activated.

Registrar Abuse Contact Email & Phone: Contact details to report abuse related to the domain.

The Role of Privacy

An essential aspect when you check WHOIS data is understanding privacy. Imagine wanting to keep your mobile number private. Domain owners do the same with their info. That’s why sometimes, you might see generic details instead of the real ones.

Due to privacy concerns, many domain registrants opt for “privacy protection” or “WHOIS privacy” services provided by registrars. These services replace the domain owner’s personal information in the WHOIS database with the details of a forwarding service, thereby protecting the domain owner’s private information from being publicly accessible.

It’s worth noting that access to WHOIS data has been restricted recently, especially after the General Data Protection Regulation (GDPR) took effect in Europe in 2018. This action has led to limited public access to specific personal data within WHOIS records.

Domain Name WHOIS vs. IP Address WHOIS

When you check WHOIS data for domain names versus IP addresses, there’s a subtle difference. A domain name, like “example.com,” represents a website’s address that people type into their browser. When you look up its WHOIS data, you get details about who registered that specific website address, its creation date, expiration, and other related info.

On the other hand, an IP address, like “”, is a numerical label assigned to every device participating in a computer network. When you check WHOIS data for an IP address, you uncover information about the organization responsible for that particular IP range, its allocation or assignment date, and the region it’s based in.

Think of it like comparing a home address to a phone number; both provide unique information, but they serve different purposes in the internet world.

Why Check WHOIS Data?

It’s like doing a background check. Whether you’re curious, looking to buy a domain, or trying to resolve a technical issue, this information can be invaluable.

Tools to Check WHOIS Data

When you decide to check WHOIS data, numerous tools can help you, many of which are freely available online. Some of the popular ones include:

ICANN WHOIS Lookup: Managed by the Internet Corporation for Assigned Names and Numbers, this tool provides accurate details for domain names registered across the globe.

DomainTools WHOIS: DomainTools offers both free and advanced paid features. The WHOIS tool provides in-depth insights into domain registration and history.

Each Domain Registrar should have its own WHOIS tools, but the data should be the same. The abovementioned tools are the most credible ones.

These tools provide a gateway to understanding a domain’s background, ownership details, and more, making digging into the digital identity of a website or IP address straightforward and accessible to anyone.


In conclusion, when you aim to check WHOIS data, you’re essentially trying to uncover the backstory of a website. It’s straightforward, and with the tools available online, anyone can easily dive into the world of domains.


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