Fumiki Takahashi

TAROSKY INC.

Mark Walters

This plugin adds an “External Link” section to the post editor.
If you’re publishing posts that are primarily used to link to external news articles or resources, the plugin overrides the post’s permalink and redirects users to the specified external URL when they click the post.
The “External Link” section has two options:
<ol>
<li>External link (This URL will replace the return value of <code>the_permalink</code>)</li>
<li>Open in new window (checkbox)</li>
</ol>
By setting an external link, the link in your widget, post archive and so on, will refer to the new URL you saved.
<h4>Settings</h4>
This plugin adds a new section to Writing Settings with 3 different options.
<ol>
<li>Post Types </li>
</ol>
Lets you select which post types should support external links.
<ol>
<li>Attributes </li>
</ol>
When set to Automatic, the target and rel attributes will be automatically added to anchor elements linking to the new URL, using jQuery.
When set to Manual, developers must manually add anchor elements. You can either use <code>tsep_anchor_attributes()</code> to generate the href, rel and target attributes, or use <code>the_permalink()</code> to populate the href attribute and <code>tsep_target_attributes()</code> to add the target and rel attributes separately.
Easy method:
<pre><a class="some-class">Click here!</a></pre>
With separate attributes:
<pre><a href="" class="some-class">Click here!</a></pre>
<ol>
<li>Single Page Content </li>
</ol>
This option allows you to manually write an anchor element that will be added to the post’s content. Use %link% for the external link, and %rel% for the target and rel attributes.
<pre><a href="%link%" rel="nofollow ugc">Click here!</a></pre>
This will produce the following output:
<pre><a href="https://example.com" rel="noopener noreferrer nofollow ugc">Click here!</a></pre>

Taro External Permalink

A WordPress plugin that allows selected post types to redirect to external URLs.

Seebz

Improve Page Permalinks. 
This plugin just adds .html to the permalink pages when needed. 
An option can prevent this action for specific pages.
<h4>Example</h4>
<ul>
<li>yourblog.com/page.html</li>
<li>yourblog.com/parent/</li>
<li>yourblog.com/parent/child.html</li>
</ul>
<h4>Compatibility</h4>
Not tested yet with all previous 3.0 WordPress version
Tests OK with the following plugins
<ul>
<li><a href="https://wordpress.org/extend/plugins/permalink-redirect/" rel="ugc">Permalink Redirect</a> (v2.0.4)</li>
<li><a href="https://wordpress.org/extend/plugins/cms-tree-page-view/" rel="ugc">CMS Tree Page View</a> (v0.6)</li>
</ul>

Improved Page Permalinks

Improve page permalinks by adding ".html" for final pages

Taro External Permalink vs Improved Page Permalinks