Vincent Robic

<p>This plugin updates all URLs in the database after moving your site from one domain to another. It is useful for switching between development, testing and production stages.</p>
<p>Why this plugin ? WordPress stores absolute URLs in :</p>
<ul>
<li>posts (including pages and custom post types), drafts</li>
<li>excerpts</li>
<li>medias</li>
<li>custom fields</li>
<li>options (including ‘siteurl’ and ‘home’, in wp_options table)</li>
<li>GUIDs (only for development)</li>
</ul>
<p>When moving your website to a new domain, all these links will point to your old domain name and become outdated.</p>
<h3>Prerequisite</h3>
<p>Before moving the website, consider making a backup of the database. Then, once the site has been moved, you will need to manually update ‘siteurl’ in the ‘wp_options’ table, in order to access the WordPress Administration panel.<br />
For further information, see https://codex.wordpress.org/Changing_The_Site_URL</p>


UmanIT Update URLs

Updates all URLs in the database after moving your site from one domain to another.

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

UmanIT Update URLs vs Powie's WHOIS Domain Check