This project gives the user and/or the administrator some control over of anonymity is managed on a web site. Its intended audience are site developers and administrators that want to lower the threshold for participation, enhance privacy, or both.
The projects linked to from this page lets the user set the HTML robots metatag to noindex for a specific web page. This will instruct well-behaved search engine robots to not index the node, preventing the node from appearing in search engine results.
Reasons why you may want to do this is to tell robots not to index pages on your web site that: