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How To Check Domain Information

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How Can I Perform A Domain Owner History Lookup

How To Find Domain Owner Information ( WHOIS Information )

In the same way that we often , domain names also allow any user to perform a from web-based interfaces, the terminal or even API services.

While the traditional WHOIS/RDAP lookup doesnt officially let you go back in time to fetch domain ownership historical records, here at SecurityTrails we offer two ways to detect those old WHOIS records easily.

On the other hand, when it comes to WHOIS History analysis, the Registration Data Access Protocol is expected to be the official WHOIS protocol replacement sometime in the near future. It was developed by the IETF , and helps users obtain current domain registration information, in the same way that the current WHOIS protocol does.

There are a few differences between the RDAP and WHOIS protocols, however. WHOIS uses text-based protocol, whereas RADP was built as a web-based HTTP REST protocol. RDAP uses JSON format for its HTTP/S replies, and supports HEAD and GET methods. And when it comes to supporting domain name ownership history, it seems theres something in the plans in the form of a draft, but nothing solid so far that can be used for historical WHOIS lookup.

How To Find Out Who The Domain Owner Is

Youve spent time brainstorming domain names. Youve tried different domain suggestion tools. And youve finally figured out the perfect name.

But when you go to register the domain name youre set on, you find that someone has already claimed it. What a disappointment.

Before you give up on that perfect name and start the whole process again from scratch, know there might still be hope.

Registered domain names are sometimes still availableif you know how to find the owner.

People invest in domain names for a number of different reasons. Sometimes, its to start their own website at that domain. Sometimes its purely for investment purposes. And in a few cases, it may be for a website idea that either never comes to fruition, or that falls off the owners radar over time.

If the website youre interested in isnt being actively used and updated, then the owner may be happy to hear from an interested buyer. And even if the owner is clearly using the domain name right now, if youre willing to spend enough to make a sale worth it to them you may still have a chance.

In both cases, you should anticipate spending more for the domain name than if you went with something no one else owns yet. But if youre really set on that domain name, its worth trying your chances.

Check If Computer Is In Domain

Find out whatever a computer is a part of a Windows domain and get the domain name:

C:\>  systeminfo | findstr /B "Domain"

The output as follows means that your computer is a part of a domain global.net.intra:

Domain: global.net.intra

If you get the output as follows, it means that your computer is a part of a workgroup:


Domain vs. Workgroup: Domain is a group of computers that share a common user account database. Workgroup is a group of computers that share resources with each other in peer-to-peer network .

Cool Tip: How to determine whether the current user is a Domain User account or a Local User account! Read more

Read Also: Why Are Some Domains So Expensive

Domain Name Whois: How To Find Contact Information

I use this code fragment for Whois information:

org.apache.commons.net.whois.WhoisClient whois = new org.apache.commons.net.whois.WhoisClient whois.connect String domainWhois = whois.query whois.disconnect 

I get creation, expiration dates, registrar and name servers but there is no data related to administrative or technical contacts. Is there any way to get them?

  • try whois.connect CSKJun 23 ’16 at 16:14
  • whois.iana.org server returns the same contact for all domains: VeriSign Global Registry Services. whois.connect does not give any additional info.Jun 23 ’16 at 16:30
  • 1whois.verisign-grs.com provides a thin whois service. You need to query the domain again at the registrar’s whois server .Jun 26 ’16 at 15:23

Generally, finding the owner/administrator of a particular .com or .net domain involves performing two WHOIS lookups.

Verisign is the registry for these top-level domains. The code in your question is correct in that you must query the server at whois.verisign-grs.com.

However, you should be aware that this is a thin WHOIS service. This means that the server will only send you back information about the registrar , as well as expiry dates, name servers, and so on.

Using stackoverflow.com as an example, Verisign tells you that the registrar is NAME.COM INC :

If you want to see information about the company or individual that actually owns the domain, you need to send the query to the registrar’s WHOIS server. In this case the query must go to whois.name.com:

What Happens When A Domain Name Expires

How to check if the domain name I want is already in use ...

As soon as you or someone elses domain name expires, it goes through several stages before it can change ownership. The first stage is reminder letters from the hosting provider. The provider will try several times to remind the domain owner that the domain is about to expire and be extended.

If the domain owner does not respond to the reminder letters, a grace period will be in effect for a while. It is the period during which the current owner has the first right to redeem his hostname. Besides, the owner will also have to pay a fine for overdue domain renewal.

If, during this period, and the domain owner does not get in touch and does not show their desire to redeem the domain, the domain name is put up for auction and becomes available for purchase by anyone who wants to.

If no one wants to buy the site name during the auction, it will be offered for public sale on the market. Please take advantage of our Best Website Hosting Providers with the possibility to buy a domain!

In case you are the owner of an expired site name, you can try to look for it on the open market, but the better the performance, the less chance that the site name will be available for purchase.

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Learn Everything About A Domain By Using Our Whois Lookup

WHOIS is an internet protocol which can be used to look up who owns which online resources such as domain names and IP addresses, at any given time. It is thanks to WHOIS lookup, that you may find out when a domain was created, when its set to expire, who owns it and how to contact them. Learn how to use our WHOIS lookup a simple yet very useful online domain lookup tool.

Perform A Whois Search

The WHOIS service offered by NETIM and the access to the records in the WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names. NETIM cannot, under any circumstances, be held liable in case the stored information would prove to be wrong, incomplete or not accurate in any sense. By submitting a query you agree not to use the information made available to: * allow, enable or otherwise support the transmission of unsolicited, commercial advertising or other solicitations whether via email or otherwise * target advertising in any possible way * to cause nuisance in any possible way to the registrants by sending messages to them.

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Faq / Frequently Asked Questions

How do I see information about domain names?

Use our free WHOIS domain lookup service to see information about domain names. By doing a WHOIS lookup, you can see who owns a particular domain and get information about when the domain expired, its status, and more. You can use these WHOIS lookup results to find whether domains are available or get information about domains you might want to buy all thanks to our WHOIS domain lookup.

Where can I see details about a domain?

Use our WHOIS domain lookup tool to get information about a domain. Do a WHOIS domain lookup and get details about the owner, when the domain expires, when it was created, etc. in your WHOIS lookup results. Use these domain lookup results to find out which domains are available or use the WHOIS lookup to get information about domains you may want to purchase.

VPS or web hosting?

Generally, a web hosting plan is the simplest way to host a site. Web hosting doesn’t give a lot of control of the hosting infrastructure to the owner of the website. Which is great if you’re not a technical expert, but those looking to more finely tune their use of resources, and control their hosting environment should consider using cloud hosting, a VPS, or dedicated hosting.

What are Gandi’s mail hosting services?

Choose an email address based on your domain and take advantage of secure email accounts that let you easily manage your emails on any platform. Our email hosting options:

  • Standard email

Check Domain Name Registration Using Python

Find A Domain Owner | How To Check Domain Registration | OSINT | Whois Lookup

To get started we will first import the required library and create a domain variable and pass the URL we want to get information about:

import whoisdomain='www.pyshark.com'

The usage of the functions of the python-whois library is very simple. Now, we know that www.pyshark.com exists since you are on this website and are reading this article.

To get an object that contains the WHOIS information about this domain name we need to use the following code:

domain_info = whois.whois

Note that this code will only execute successfully if the domain name is registered. If its not it will give you an error.

We can use this information to build a function that will simply return True/False is the domain name is registered/not registered:

def check_reg:    try:        domain_info = whois.whois        return True    except:        return False

What this function will do is it will try to retrieve the WHOIS object with information about the domain name, and if it succeeds, it will return True. If not False which means that the domain name isnt registered.

Lets give it a try:


and you should get:


What this result tells us is that it is a registered domain. For us this means that we can retrieve some information about it.

Now if you tried running this function against some random domain that doesnt exist, the function would return False which will mean that any further information retrieval of information is not possible simply because the domain isnt registered.

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What Is A Whois Ip Lookup

An IP is a unique address of a server on the internet. Similar to how a telephone number allows you to connect to a specific phone on the telecom network, similarly, an IP address allows your computer to connect to a specific server on the internet.

Domain names and IP numbers are the framework upon which the entire world wide web is built.

IP numbers are assigned to networking organisations with a record maintained by governing bodies for each IP number and the organisation to which it has been assigned. A whois IP lookup allows you track the above mentioned details for a domain.

Look Up Your Dns Records

Next, lets look at your DNS records and find out where the website and email is being hosted.

Head over to DNSChecker.org and enter your domain name.

Heres what it looks like for tonyherman.com:

Heres a guide on how to read this:

  • The A record is the IP address of the website hosting
  • The MX records define where your email is hosted

Those are the main records you need to know. The TXT records are used for validating domain ownership with different services or sometimes for certain email hosts. PTR and SRV are mainly used for some email hosting as well. And CNAME records are also for website hosting, like the www version of your website or other sub-domains you might have.

Now, with an IP address, youre only getting half of the story because DNS is really for computers to turn domain names into IP addresses so they can go get what they need. So, to find out whats really going on, you need reverse that and find out who owns the IP address block that is mentioned.

At this point, you know:

  • Where the domain is registered
  • Where the DNS is hosted
  • The IP address of the website hosting
  • The IP address or host for email

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What Is A Whois Lookup

Immediately after a domain has been registered, the Internet Corporation of Assigned Names and Numbers requires that accredited registrars such as Hostpoint publish the contact information of the owner, the domainâs registration and expiry date and other details in the Whois database.

The Whois database is a searchable list of all domains currently registered worldwide. A Whois domain lookup allows you to request domain name information about an already registered domain. Since data protection regulations have tightened, some data is usually no longer visible.

Three: Contact The Domain Registrar

10 Domain Name Search Tools to Check Available Domains ...

Many domain registrars now offer domain name privacy, which keeps the owners personal information from being listed in the WHOIS directory. Between that and GDPR legislation, the WHOIS directory is no longer a reliable way to find a domain owners personal contact information.

That means in many cases, you wont be able to learn directly who the owner is via the directory. But you will be able to find out who they registered the domain with.

This still isnt a dead end. Go to the website of the domain registrar , and look for their contact information. Give them a call or write them an email letting them know what domain youre interested in buying, and ask them to pass along your information to the owner. The registrar will have the owners contact details on file, and will be able to share your interest with them without violating any privacy concerns.

Read Also: How Much For A Domain Name

The Global Domain Eg Com

The most popular website that allows checking data on global domains is www.who.is. Just visit the website, enter the domain name and get the information about the domain you are looking for. Service www.who.is compared to www.dns.pl allows you to check every domain available on the Internet.

The www.who.is website is popular and convenient because it works quickly, its address is easy to remember and does not require additional verification, even in the form of reCAPTCHA. It allows you to check the domain very quickly.

The www.who.is database when asked about a regional domain, eg my-page.szczecin.pl will only return information that the domain is already occupied. The query will be limited to checking the very domain of szczecin.pl.

In the case of the European domain, it will display basic information about the domain itself, but for more information, it will refer you to the www.eurid.eu database

After entering the following question in the Google search engine: whois, we will find a number of similar websites. Some of them display the information above and more, e.g. about the server itself, IP address and site activity on the network. For example, one of the websites using the WHOIS database is able to indicate that on the server to which the searched domain is connected, there are also 9 other websites.

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