Jake Spurlock

This simple plugin that adds a “Host-Header” HTTP header where you can define your webhost. Web partners that scan for compromised websites can notify hosts more effectively to cleanup sites.
This plugin is super overkill. Adding a simple file with the following to your <code>mu-plugins.php</code> will have the same effect.
<pre><code>// custom-host-header.php
add_filter( 'wp_headers', function( $headers ) {
 $headers['Host-Header'] = 'YOUR HOST NAME HERE';
 return $headers;
} );
</code></pre>

WordPress Host Headers

Add a Host-Header to track down hosting partners in helping combat web spam.

Aurélien LWS

This plugin, created by <a href="https://www.lws.fr" rel="nofollow ugc">LWS</a>, allows you to easily add banners and widgets such as domain name availability search or a summary table of our hosting plans on your website.
Enjoy our affiliate program and earn money!
<h4>Key Features</h4>
Major features in LWS Affiliation include:
<ul>
<li>
Add an affiliate banner in one click.
</li>
<li>
Add a customizable domain name search widget.
</li>
<li>
Add a table of our hosting offers (shared hosting, VPS, e-commerce, cloud, etc…).
</li>
<li>
Follow the perfomances of your widgets on your website
</li>
</ul>
You will need a <a href="https://affiliation.lws-hosting.com/members/login" rel="nofollow ugc">LWS Affiliation account</a> to use it. 
This plugin is ideal for fans of LWS services and especially Best Sellers shared <a href="https://www.lws.fr/hebergement_web.php" rel="nofollow ugc">web hosting </a>, <a href="https://www.lws.fr/hebergement_wordpress.php" rel="nofollow ugc">WordPress hosting</a>, <a href="https://www.lws.fr/hebergement-cpanel.php" rel="nofollow ugc">cPanel hosting</a>.

LWS Affiliation

Add banners and widgets from the affiliate program of LWS.

WordPress Host Headers vs LWS Affiliation