Here are two links to an external site ( oik-plugins.com ). If you click on the first one you’ll not see the external link warning message. If you click on the second one the external link warning will be displayed.
The first one has a protocol which doesn’t exactly match those that are being checked
httP:// is neither http:// nor https://
Here are the same links which use link text rather than the URL.
Note: These links were created using the [bw_link] shortcode.
<ol>
<li>[bw_link httP://oik-plugins.com text="oik-plugins.com"]</li>
<li>[bw_link http://oik-plugins.com text="oik-plugins.com"]</li>
</ol>