Eugen Bobrowski

Plugin provide to help search engines to indexing site correctly.
A simple plugin to manage your robots.txt. Plugin donn’t create the file or edit it. This plugin edit WordPress output of robots.txt content. And get you a easy and usable interface to manage it.
Features
<ul>
<li>Drag-n-drop robots.txt paths</li>
<li>Changing <code>blog_public</code> option form plugin settings page</li>
<li>Site map field for robots.txt</li>
<li>Robots.txt physical file checking.</li>
</ul>

Robots.txt rewrite

first review

Provide the easy managment of your robots.txt from admin side. It propose you the advanced then standard robots.txt content too.

Artem Pilipets

Manage prohibitions meta robots and robots.txt file from the control panel using the commands in the format of robots.txt
PHP script parses commands from the metarobots.txt file and creates relevant tags.
<h4>Currently script supports following commands:</h4>
<ul>
<li>
Disallow: 
name=”robots” content=”noindex, nofollow” 
Blocks content from crawling for the search engine.
</li>
<li>
Index: 
name=”robots” content=”index, nofollow” 
Allows crawling, forbids follow the links.
</li>
<li>
Follow: 
name=”robots” content=”noindex, follow” 
Forbids crawling, allows forbids follow the links.
</li>
<li>
Noarchiv: 
name=”robots” content=”noarchive” 
Do not show a link to the cached copy.
</li>
<li>
Nosnippet: 
name=”robots” content=”nosnippet” 
Do not create a snippet.
</li>
<li>
Noodp: 
name=”robots” content=”noodp” 
Do not use the description from DMOZ for snippet.
</li>
<li>
Notranslate: 
name=”robots” content=”notranslate” 
Do not offer page translation.
</li>
<li>
Noimageindex: 
name=”robots” content=”noimageindex” 
Do not crawl the image on the page.
</li>
</ul>

MetaRobots by SEO-Sign

The easiest way to manage meta robots tag.

Robots.txt rewrite vs MetaRobots by SEO-Sign