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How To Find All Domains Owned By A Company

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Why Should You Find Domains Owned By A Company

How to Find Out Who Actually Owns a Domain Name 3 Ways

During a black box, or grey box penetration testing engagement for a company, one of the main things you will need to discover is the domains owned by the company. This technique is also useful for other, marketing and business analysis purposes.

The first steps to perform is basic search to find out their website and thus their domain name.

You will use this domain to perform a whois lookup to find out the Registrant Organization name for this domain. Reverse Whois lookups is a powerful way to identify relatioships between registrants information.

NOTE: Some domain owners have opted for Private Registration. In this case their contact details will not be available in the public whois database.

How To Check The History Of A Domain Name

The first computers started connecting to one another through Wide Area Networks in the 1960s. However, it took several years before the Internet exploded in 1990. The World Wide Web was created a year later, which also gave way to commercial service providers to begin operating. The registration of domain names became an official part of the process.

Initially, owning a domain name was free but the exponential increase of Internet use needed to be controlled. Registration services were offered, and the Internet Corporation for Assigned Names and Numbers was created. ICANN is a nonprofit corporation that manages the domain name system of the Internet, as well as its other elements, including IP address allocation and protocol parameter designation.

Fast forward to today, it is estimated that there are more than 19 million registered domain names. Approximately 40,000 are registered each day, proving that there is nothing that can stop the Internet from growing. Buying a domain name from a domain registrar is now a simple process which takes less than 2 minutes.

Who Legally Owns A Domain

Searching for a domains owner can turn up multiple names provided as contacts for functions such as technical support, administration, and billing. But, the legal owner of a website is the registrantthe person or entity in whose name the domain has been registered with a dedicated domain registrar or hosting provider. As long as registration fees are kept up to date, that owner retains full rights to the domain and has sole control over selling it at any time, whether or not the domain is nearing expiration.

Also Check: How Much Does It Cost To Buy A Website Domain

Use Google Analytics Lookups

Google AdSense is only popular among content publishers but almost every website is using Google Analytics for traffic statistics. And there are online tools available that can quickly find all websites that are are connected to the same Google Analytics account.

Download the AnalyticsRelationships script here

git clone

The script is written both in GO and python versions.

Why Do Some Whois Queries Have More Information Than Others

Domain Registration

With WHOIS now in a state of change due in part to privacy laws such as GDPR, the data displayed in a WHOIS lookup can vary to some degree as each of the Registrant, Registrar and Registry have a jurisdictional nexus with such laws.

Where a nexus with the EU’s GDPR is present, Personally Identifiable Information will often be removed or redacted from WHOIS output.

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Who Owns My Domain Name And How Do I Recover It

by Ryan Bowman | May 9, 2018 | Domains, Hosting, & Email |

If someone else has control over what you thought was your domain and you either cant get in contact with them or they wont agree to hand over the domain, domain recovery can be incredibly difficult or plain impossible. At that point, you may be out of luck and have to create an entirely new domain. That means losing all the value youve built over the years on that domain.

If you find yourself in this domain ownership debacle, here are some free tools I use to do the necessary research that can put you on the road to domain recovery.

Why Choose A Company Domain

.company overview

The Internet is the first place customers will look to find out how to access your products and services, and they must be able to discover your business. To get them the information they need, you need a professional online presence. That includes a domain name thats clear, unique, and distinctive. Try .companyits a generic top-level domain that’s ideal for any kind of firm, business, or company.

.company facts, stats & history

.company is a newer, generic top-level domain. Unlike other business oriented TLDs like .biz and .co, theres a lot less competition for .company domains, so you have a better chance of getting the exact name you want. Even better, anyone in the world can register a .company domain name. Its the perfect extension to show your audience that you’re a capable, trustworthy professional.

Read Also: How Much Does It Cost To Purchase A Domain Name

Search For The Domain Name Youre Interested In

Now, simply type in the domain name you want to find out more information about into the search bar and press enter. Whenever a domain owner decides to register the domain, theyre required to include information such as their name, address, email, and phone number. A Whois lookup can also tell you which registrar the domain is at, when it was registered, when it could potentially expire, and more.

How Can I Protect My Privacy Online

Google Domains – Coming Online – Open All Hours using Google Workspace for business

If youve registered a domain and dont want your personal contact information listed publicly, why not consider domain privacy protection?

Then, when someone searches for your web address on the Whois database, alternative contact information will be displayed instead of your personal information.

Here at Namecheap, we offer free Domain Privacy with every new registration and transfer.

Our domain privacy service provider does not require your personal information at any stage and any details you share with Namecheap will stay with us.

Plus, if you have privacy protection in place, it also limits the chance of marketing firms and online fraudsters from handling your contact information.

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Reverse Whois Lookups With Google

When you register a web domain, your name, contact address, phone number and other details are stored with the domain in a public registry database that anyone can access online using a Whois Lookup tool.

Go to and enter the domain name that you are trying to research. This will provide you contact details of the domain registrant and you can then use this data to perform a reverse whois lookup on Google to find other domains of that person.

PHONE_NUMBER site:whois.domaintools.comSTREET_ADDRESS

Replace Phone Number or Street Address in the above search queries with the actual data from the whois database. You may also perform reverse Whois Lookups by name but that may return too many results phone numbers and postal addresses are more likely to be unique.

How Can This Tool Find Out Registered Domains From An Ip Address

This is one that I’ve never really known how to do, and it’s been nagging me from time to time for years. I’ve read all I could find, including all the answers here. None of them gives a real answer to the question. So please read carefully before flagging a duplicate it is not.

dig, host, nslookup… none of them seems to be able to get what I’m after.

At most I can get pointers like

But if I use this online tool, I get exactly what I’m looking for: every domain that resolves to the IP address given . In this case, it’s a freemium service, so it’ll only list the first few, but it works. In the following image, I use three domains that I own and serve from a VPS. They are totally unrelated, but they all appear here:

What black magic are they using? How can we replicate it?

  • Noted it doesn’t work at all on IPv6 – too much data to index. And it also misses things that don’t start in www. CriggieJun 5, 2019 at 1:07

It’s brute force.

They have looked up the IP addresses of every domain name they can find, and then compiled the results into their own database.

  • 3The only part that is unclear to me is how they find a list of every domain name as there isn’t a central list anywhere. Edit: Looks like they don’t have everything because my website that has been up for years is not listedJun 5, 2019 at 4:38

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New Feature: Find Every Domain Someone Owns Automatically

Reading time: 2 minutes

Update: this feature has been moved to , our all in one OSINT tool. Get full access to historical WHOIS records, open ports, SSL certificates, and other recon data in an instant. Book a demo today!

Today, we are excited to announce our latest feature which we have been working on for the past weeks. It is the Whois aggregation tool that is now available on .

In the past, searching for domain owners took lot of time, because most of the time you needed to have the domain names pointed to an IP address in order to find the rest of the domains owned by the same person.

Using that old method you could easily lose hours and hours each day by researching and crossing results and data between one tool and another until you got the domain list you wanted.

Thanks to this new tool and our intelligent , now you can search for any domain name and get the full list of domains registered by that organization or person and get accurate results within seconds.

How To Hide Your Information From Whois Lookups

Check for Name Availability Across the Internet with NameCheckr

Online privacy is incredibly important and some people do not want their contact details publicly available on the internet. For anyone who does not want to sell their domain or be contacted by those browsing the Whois directory, we highly recommend purchasing Advanced Security for all of your domains, which includes Whois Privacy, Domain Lock Plus, and a free SSL certificate. It masks your contact information and prevents spammers and telemarketers from using your information for no good.

Recommended Reading: What To Do After Buying A Domain

Fantastic Tools To Find Smart Domain Name For Your Business

Geekflare is supported by our audience. We may earn affiliate commissions from buying links on this site.

Domain Name Generator

  • Wordoid
  • Get application security done the right way! Detect, Protect, Monitor, Accelerate, and more
  • One of the challenging tasks for startup/business owners at the planning phase is finding the smart domain name. A domain name that is short, easy to pronounce, rememberable, and SEO friendly.

    Considering the growth in an online website, it might be frustrating to see the registered domain you are looking for.

    There are more than 330 million domains registered, so whatever you think of short dictionary words is likely gone.

    Thanks to the following tools, which help you find a relevant domain name for your business with multiple combinations.

    Most of the domain name generator tools let you buy it directly from the search result, but if you want to buy it separately, you may check out these platforms to buy a domain name cheaply.

    And if you are planning to host your website on shared hosting, you can try SiteGround or Bluehost who offers a FREE domain.

    Lets take a look at the domain search tools.

    How Do I Use The Whois Lookup Tool

    Do you want to know more about a domain and find out who owns it? Use our domain owner lookup tool by entering the URL into thesearch bar above.

    Here you will find the answers to important questions like:

    • Is the domain available for registering?
    • Who is the domain owner?
    • What contact information is available?
    • When is the registration expiration date?

    Discover further information on any domain, and find new opportunities for your personal or professional website.

    Also Check: How Much To Buy A Domain Name

    How To Find Out Who Actually Owns A Domain Name

    Last updated on June 2nd, 2021 by Editorial Staff | Disclosure: Our content is reader-supported. This means if you click on some of our links, then we may earn a commission. See how WPBeginner is funded, why it matters, and how you can support us.

    Do you want to find out who actually owns a domain name?

    Looking up who owns a domain can help you find the owners contact information, so you can purchase the domain name.

    In this article, well show you how you can find out who actually owns a domain name, step by step.

    Why Find Out Who Owns a Domain Name?

    Finding out who owns a domain name can tell you valuable information about the domain name owner.

    Usually, this information will include an email address and other contact information, so you can get in touch to purchase the domain name.

    It also shows you useful domain name information, like the last time it was registered, how many owners the domain has had, and more.

    If you find that multiple people have owned a specific domain name, then this increases chances of the domain being used for spam.

    When youre creating a WordPress website, one of the biggest decisions youll make is choosing the perfect business name and matching domain.

    If youve found a great domain, but its already registered, then youll want to reach out to the owner to see if theyre willing to sell it to you.

    Method 1: Search for a Domain With WHOIS Lookup Tool

    Then, the tool will display the available WHOIS results.

    How Is Whois Changing

    How Domain Ownership is Determined (& Why it Matters)

    In light of the General Data Protection Regulation, or GDPR, coming into force within the European Union in May 2018, many Registries and Registrars that operate within that region, or globally, are required to gain Registrant’s consent before disclosing Personally Identifiable Information to any third parties or the public. As a result of the implementation of the GDRP, much of the data historically found within WHOIS will no longer be included or be redacted. The absence of this information has a trickle-down effect throughout the domain industry, affecting WHOIS data output for domain names and Registrants that do not have an immediate or obvious nexus to the European Union

    Recommended Reading: Transfer Domain From Wix To Shopify

    How To Read Your Result File

    The results can be downloaded in a CSV file. CSV files can be opened with all major spreadsheet software, such as Excel, Google Sheets and Numbers. The file has several columns lets have a look at them together:

  • Email address: the email address found from Hunter

  • Domain name: the domain associated with that email address

  • Organization: the company name

  • Confidence score: an indicator of the estimated deliverability of the email .

  • Type: the email type will be personal if it’s associated with a specific person, and generic otherwise.

  • Number of sources: the number of sources where you can find that email address on the public web.

  • Pattern: the most common pattern used for the domain’s personal emails.

  • The file will also contain additional information for every email address, when available:

    • First Name

    • Input

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