nicolly

Convert all external links into internal or nofollow links!
This plugin is a fork of the hijacked and vulnarable “WP No External Links” plugin.
The following critical issues have been fixed: 
– Removed Cross-Site Scripting vulnerability. 
– Removed backdoor injected into original plugin. 
– Fixed creation of the new <code>links_stats</code> table: added charset collation and table existence check. 
– Fixed “Specified key was too long; max key length is 767 bytes” error on creating <code>mask_links</code> table. 
– Added removing tables on uninstallation.
No External Links plugin is designed for specialists who care about the number of outgoing links that can be found by search engines. Now you can make all external links internal! Plugin does not change anything in website database – it just processes the output. Now you don’t need to worry about your page rank dropping because of spam bots. You write any kind of http link and it becomes internal, hidden or nofollow! Of course, all the links will still be usable.
To make the long story short, your links like “http://gmail.com” will be masked into 
“http://YourBlog.com/goto/http://gmail.com” – or 
“http://YourBlog.com?goto=http://gmail.com”
<h4>Features</h4>
<ul>
<li>Masking links in posts, pages, comments or on the whole website including widget, theme footer, etc.</li>
<li>Outgoing clicks stats.</li>
<li>Javascript redirect with custom text and timeout.</li>
<li>Masking links with digital code and base64.</li>
<li>Completely removing links from your posts.</li>
<li>Custom redirects.</li>
<li>Disabling masking for registered users.</li>
<li>Disabling masking on per-post basis.</li>
<li>Using nofollow and noindex instead of redirection.</li>
<li>Excluding URLs from masking.</li>
<li>Masking links in custom fields.</li>
<li>Extending plugin with your own functions.</li>
</ul>
If you need any extra features, just create a ticket via support forum.
<h4>Known Issues</h4>
This plugin may conflict with your caching plugins, including Hyper Cache. Usually adding redirect page to caching plugin exclusions works fine.
If you disabled this plugin and still have links masked – check your chaching plugins.

WP No External Links

Convert all external links into internal or nofollow links!

Sumit Malviya

Nofollow External/Outbound Link (SEO) is a lightweight WordPress plugin that automatically adds the rel=”nofollow” attribute to external links across your website.
The plugin works silently in the background and requires no configuration. Simply install and activate the plugin, and all external links will automatically receive the nofollow attribute.
With no complex backend configurations required, this plugin seamlessly integrates into your WordPress site. Upon activation, it works silently in the background, applying the rel=”nofollow” attribute to all external links across your website. This proactive approach ensures that search engine crawlers recognize these links as non-endorsements, helping you maintain control over your site’s link profile.
This helps:
<ul>
<li>Improve SEO management</li>
<li>Protect your website’s link equity</li>
<li>Reduce unnecessary endorsement of external websites</li>
<li>Improve control over outbound links</li>
<li>Follow search engine best practices</li>
</ul>
Perfect for:
<ul>
<li>Bloggers</li>
<li>Affiliate marketers</li>
<li>SEO professionals</li>
<li>Business websites</li>
<li>WooCommerce stores</li>
</ul>
<h4>Features</h4>
<ul>
<li>Automatically add rel=”nofollow” to external links</li>
<li>No settings required</li>
<li>Lightweight and fast</li>
<li>Works with all WordPress themes</li>
<li>Compatible with most plugins</li>
<li>SEO friendly</li>
<li>Easy installation</li>
</ul>

Nofollow External/Outbound Link (SEO)

Automatically add rel="nofollow" to external and outbound links to improve SEO, protect link equity, and control outbound link behavior.

WP No External Links vs Nofollow External/Outbound Link (SEO)