Marvie Pons

Rel Nofollow Categories is a plugin which adds nofollow attribute to categories generated by the_category and wp_list_categories throughout the blog.
Adds Nofollows to category links and an option to noindex the category pages.
Plugin by <a href="http://tutskid.com/" rel="nofollow ugc">How To | Tutorials | TutsKid</a>.
<h3>License</h3>
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Rel Nofollow Categories. If not, see <a href="http://www.gnu.org/licenses/" rel="nofollow ugc">http://www.gnu.org/licenses/</a>.

Rel Nofollow Categories

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!

Rel Nofollow Categories vs WP No External Links