Doltics

Simple validation for your website.
Our validation API checks and ensures the content processes on your website is valid. 
We validate email records against the domain to ensure that you are receiving and sending valid content from your site using out third party solution. 
We check and verify the email domain MX records are valid. Each new unique request is maintained for 24 hours before a fresh request is done.
<ol>
<li><a href="https://doltics.com/docs/email-validation-api/" rel="nofollow ugc">Documentation</a></li>
<li><a href="https://doltics.com/terms-of-service/" rel="nofollow ugc">Terms of service</a></li>
</ol>
Future plugin updates will include <a href="https://en.wikipedia.org/wiki/Deep_learning" rel="nofollow ugc">Deep learning</a> to better understand spam emails and email content with compatibility with popular form plugins. 
For now we validate the <code>is_email</code> function provided by WordPress core.

Doltics Validator

mliljedahl

This is a simple plugin for WordPress to test if the visitors ISP supports DNSSEC. The result is displayd in a widget. This plugin is totally relying on the code from Loopia AB, www.loopia.se. For more information (in Swedish) see http://blogg.loopia.se/2009/02/23/snalla-stjal-var-dnssec-kod/ .
You are free to do any changes in the code so it fits your theme but please let me, markus(at)liljedahl.me know so I maby can do a global update.
Related Links:
<ul>
<li><a href="http://www.liljedahl.info/projects/wp-dnssectest/" title="DNSSEC Test widget for WordPress" rel="nofollow ugc">Plugin Homepage</a></li>
<li><a href="http://www.liljedahl.info/projects/wp-dnssectest/changelog/" title="Changelog of the DNSSEC Test widget for WordPress" rel="nofollow ugc">Changelog</a></li>
</ul>

DNSSEC Test

This is a simple plugin for Wordpress to test if the visitors ISP supports DNSSEC. The result is displayd in a widget.

Doltics Validator vs DNSSEC Test