Bulk Domains Lookup

domain

So many domains…

Recently I was given a list of around 100 domains to check the status of, e.i. Registrar Name, Expiration etc…
I sat down with my WHOIS site of choice and started working through the list. After not even completing the first one I thought, there must be a better way.

I’m on a windows machine currently…

First issue, No cmd line whois

Microsoft Windows [Version 10.0.10586]
(c) 2015 Microsoft Corporation. All rights reserved.

C:\Windows\System32>whosi
'whosi' is not recognized as an internal or external command,
operable program or batch file.

After 30 seconds on google, Sysinternals saves the day

C:\WINDOWS\system32>whois

Whois v1.14 - Domain information lookup
Copyright (C) 2005-2016 Mark Russinovich
Sysinternals - www.sysinternals.com


Usage: whois [-v] domainname [whois.server]
 -v   Print whois information for referrals
 -nobanner
      Do not display the startup banner and copyright message.

Collecting Infomation

This simple oneliner gave me a directory full of text files of WHOIS information, one file for each line in the domains.txt file.
A lot of whois server do not like you hitting them repeatedly and with out delay, so a 15 second time out was added before each look up.

domains.txt

sirmonkeys.com
carleebowles.com
chrischase.name

oneliner

for /F "tokens=*" %%A in (domains.txt) do (timeout 15 & whois -v %%A > out\%%A.txt)

Results

Directory of C:\Sandbox\whois\out

13/10/2016  12:07 PM             <DIR> .
13/10/2016  12:07 PM             <DIR> ..
13/10/2016  12:08 PM             2,637 carleebowles.com.txt
13/10/2016  12:08 PM             1,827 chrischase.name.txt
13/10/2016  12:08 PM             6,337 sirmonkeys.com.txt
               3 File(s)         10,801 bytes
               2 Dir(s)  451,512,074,240 bytes free

Making sense

To clean things up I knocked up a simple PHP script (report.php) to get the information I needed out. I doubt it covers everything, but it was enough for what I needed.
It takes each of the .txt files, does some bad Regex and spits out a somewhat useful CSV report.

C:\Sandbox\whois>php report.php

Results

carleebowles.com.txt,carleebowles.com,"gandi sas",2017-02-16
chrischase.name.txt,chrischase.name,"gandi sas",
sirmonkeys.com.txt,sirmonkeys.com,"gandi sas",2017-07-26

Is it perfect, no but it will do for now.

Sponsor

About Chris Chase 17 Articles
Yeah i could write something here... but no that's not going to happen.

Be the first to comment

Leave a Reply

Your email address will not be published.


*