FasterThemes

<p>Quick Whois WordPress Plugin Shows whois information of the provided domain name.  You can use Widget in the sidebar or you can also use Shortcode in the pages/posts.</p>
<p><a href="http://whois.fasterthemes.com/" rel="nofollow ugc">DEMO of Quick Whois plugin</a></p>
<p>Features:</p>
<ul>
<li>You can use this plugin in your sidebar by dragging and dropping “Quick Whois” Widget.</li>
<li>You can use this in any specific page/post by putting shortcode [quick_whois].</li>
<li>This plugin converts your website into a whois data provider website in a few seconds !</li>
</ul>
<h3>License and Copyrights for Resources used in this plugin</h3>
<p>i) We have used phpwhois.org php script from this website http://www.phpwhois.org Copyright which is a free software and we are allowed to redistribute it and/or<br />
modify it under the terms of the GNU General Public License v2.</p>
<pre><code>For any help you can mail us at support[at]fasterthemes.com
</code></pre>


Quick Whois

Quick Whois Plugin Shows Whois information of the provided domain name.  You can do this using Widget/Shortcode.

PowieT

<p>Checks Domain WHOIS Lookup for availability. Simple insert the [pwhois] shortcode on a page or post.<br />
To select the default TLD use the default attribute: [pwhois default=com] – sets .com as default in the TLD dropdown.<br />
TLD List is limited because of the knowledge of the required whois servers. If you wish to have support for a special TLD please contact me and I will implement it asap.<br />
We cannot guarantee that every domain lookup works perfect, in case that whois servers and how to talk to them can change time by time.<br />
However if you inform us about changes and we can get it to work, we give you a free version of the Pro version of this plugin!</p>
<h4>Demos</h4>
<p><a href="https://powie.de/wordpress/whois/" rel="nofollow ugc">Demo 1</a> – at our own page.</p>
<p><a href="https://be-webspace.de/domaincheck/" rel="nofollow ugc">Demo 2</a> – live version at a hosting providers webpage.</p>
<h4>Requires</h4>
<ul>
<li>php7</li>
</ul>
<h4>Including:</h4>
<ul>
<li>Shortcode [pwhois]</li>
</ul>
<h4>Support</h4>
<p>Support Forum @ <a href="https://forum.powie.de/forum/87-powies-whois/" rel="nofollow ugc">forum.powie.de</a><br />
You get faster feedback if you post in our forum, rather than on wordpress.org!</p>
<h3>Remove plugin</h3>
<ol>
<li>Deactivate plugin through the ‘Plugins’ menu in WordPress</li>
<li>Delete plugin through the ‘Plugins’ menu in WordPress</li>
</ol>


Powie's WHOIS Domain Check

Not what I needed. It can only check availability for .com domains, not any TLD as in description. One star for inaccurate description.

LIMITED – only checks .com

Check a Domain WHOIS Lookup for availability. Simple insert the [pwhois] shortcode on a page or post

Quick Whois vs Powie's WHOIS Domain Check