FeedViewer crawler

Feed Viewer identifies itself by this string: User-Agent: FeedViewer/1.0 (+http://www.feedviewer.net/webmasters; license agreement: http://www.feedviewer.net/license). To exclude Feed Viewer from browsing your web deny its requests recognized by this User-Agent string.

To hide syndication feed in Feed Viewer search results disalow it in robots.txt file.