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Questions tagged [whois]

The WHOIS protocol allows a user to query the registrant of a particular domain name or IP address.

The WHOIS service is a TCP based protocol that allows you to look up the registrant of a domain name.

The WHOIS service sits on TCP port 43 and can often be found at whois.nic.tld (where 'tld' is replaced with the appropriate top-level domain such as .it or .xyz).

One way to use it is to simply telnet to it and send the domain name followed with at CRLF. For example:

telnet whois.nic.coop 43 midcounties.coop

You will then get a list of all the details about the domain.

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PHP domain whois script not return all information

I need to get whois information. My function is working fine, but isn't returning "Administrative Contact, Registrant Contact, Administrative Contact, Technical Contact" information. But when I run following command on my Mac it returns all…
Anakbhai Gida
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Getting a full copy of the WHOIS database

I'm interested in getting access to a full WHOIS database in order to expand on a domain-profile project I'm working on. I know ARIN provides this database only to non-commercial researchers and every WHOIS provider I know of (including ARIN itself)…
MarathonStudios
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Parse whois answer

I want to create whois class like that public class DomainInfo { public string NameServer {get;set;} public string CreationDate {get;set;} public string UpdatedDate {get;set;} public string ExpirationDate {get;set;} …
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WHOIS command not returning useful information?

Nowadays, whenever you use WHOIS command doesn't return any usefully information. I usually have to go to Godaddy, Dnsstuff or other services to get the data. I understand the reason is mostly due to spamming. I was just wondering how other services…
Cory
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How to successfully use RDAP protocol instead of whois

I'm a little confused about the new RDAP protocol and whenever it makes sense to pursue it any further. It looks to me like everyone agreed on it to be the successor of whois, but their databases seem empty. On ubuntu I tried rdapper, nicinfo and…
evolution
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DNS Domain Registry WhoIs Match Not Found

I am monitoring a domain for when it expires. I am familiar with the expiring domain process: grace period, redemption period and then deleted. What has me baffled is when I search for this particular domain in any WhoIs database (NetworkSolution,…
ZombieCode
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The list of all .com and .net whois servers?

I'm trying to find the list of all whois servers for COM/NET. Verisign is the authoritative registry for the .com, .net, .name, .cc and .tv domains. Possible solution: To find out the complete list of whois servers is to crawl through at least a…
Edi Budimilic
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In Python, how do I check if a domain name is taken?

I want to whois "abc.us" or "abc.ly" and see if it's taken. How do I hit it and see if it's taken, using python?
TIMEX
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How can I find out a whois server for a particular domain?

I'm trying to make a desktop application checking whois records among other things and I've found a few lists mapping top-level domains to whois servers. They work usually, but sometimes information has to be found on a different whois server. For…
Fluffy
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How do you check if a domain name exists?

Not only easy ones like .com or .net, but also, .co.uk, .fr, .gov.rw ... ? Should I really make a huge mapping "tld to relevant whois server", or is there an easier way ?
BraveSirFoobar
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Can I improve this regex check for valid domain names?

So, I have been working on this domain name regular expression. So far, it seems to pick up domain names with SLDs and TLDs (with the optional ccTLD), but there is duplication of the TLD listing. Can this be refactored any…
Josh Delsman
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Whois Server block my ip address after 2 or 3 Query

I am writing domain checker for a website but i face funny issue. Some whois server which responsible for a domain like .WS (whois.worldsite.ws) or .CA (whois.cira.ca) Block ip address after 2 or 3 time query per day !!! It is look like disaster for…
user1438910
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Strategies to reduce the whois query burden

I have been working on operations with strings in a recent 100 level CompSci course. I got the very "original" idea that I might write up a simple domain name generator/checker. So I did a little homework and discovered that the various whois…
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How can I determine which company an IP address belongs to?

I'm trying to programmaticaly determine the company* associated with a given IP address. My first guess was this : string hostname = Dns.GetHostEntry(IPAddress.Parse(ip)).HostName; but this won't work if the reverse DNS isn't set correctly, which…
Brann
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Bash script that uses whois command gets "Servname not supported..." error on docker

It's my first Docker image, I put there my own bash script. This script uses the whois command. After docker runs my script, I have some errors. Probably I made mistake on my dockerfile. Script works well on my ubuntu. Should I add the…
Radek K
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