webaction

Show External Links provides information on all external links on the site pages. 
You can see the info window with the total number of links on the current page. Also, all links stand out and become visible. 
If you do not see all the links on the page, check the source code. Perhaps, they are hidden.
<blockquote>
The plugin works only for authorized users with administrative rights. 
 The plugin does not take into account the WordPress admin bar and the links specified in the skip-sites field.
</blockquote>
<a href="https://web-svb.github.io/sel.github.io" rel="nofollow ugc">Follow plugin development on Github.</a>
<h4>Features</h4>
<ul>
<li>Information on the number of external links on the page</li>
<li>Highlight external links for easy visual detection</li>
<li>Exclude certain sites from checking</li>
</ul>
<h4>Bundled Translations</h4>
<ul>
<li>English</li>
<li>Russian</li>
</ul>

Show External Links

With the plugin Show External Links easy to find all the external links on the pages of the site.

datafeedr

The Cloak Affiliate Links for WooCommerce plugin allows you to mask all external links in your WooCommerce store.
For example, change this… 
 merchant.com/index.php?aff_id=123&product_id=456
… into this: 
 yoursite.com/go/123
Configure the status code for the redirect to either 301, 302 or 307.
The plugin also adds a “Disallow” to your robots.txt file to prevent bots from following those external links.

Cloak Affiliate Links for WooCommerce

I use it for some time now and I am very happy with it! Thanks!

Awesome plugin!

Cloak your WooCommerce external & affiliate links.

Show External Links vs Cloak Affiliate Links for WooCommerce