netroby

WP-log-robots is a wordpress plugin, we could used it to loged the search engine robots activity.
after you had installed it . the WP-log-robots will log each robots activity and wrote it to log file .
if your site was : http://www.netroby.com. then the log file would be location at : http://www.netroby.com/robots_log.txt
<h3>Manual Installation</h3>
In case you want to make all steps manually:
<ol>
<li>
Upload to your plugins folder, usually <code>wp-content/plugins/</code> and unzip the file, it will create a <code>wp-content/plugins/wp-log-robots/</code> directory.
</li>
<li>
Make <code>wp-content</code> directory writeable by the web server.
</li>
<li>
Activate the plugin on the plugin screen.
</li>
</ol>
<h3>More Info</h3>
For more info, please visit http://www.netroby.com/ .
(For feedback/comments, please send an e-mail to: netroby[at]netroby.com ).

WP-log-robots

WP-log-robots is a wordpress plugin, we could used it to loged the search engine  robots activity.

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.

WP-log-robots vs Robots.txt rewrite