fdc5e7d5_Robots_txt_Tutorial__3
[0] robots meta nofollow tag [1] destination page only crawled if linked to from other documents [2] destination page only appears if linked to from other documents [4] If you are pushing significant PageRank into a page and do not allow PageRank to flow out from that page you may waste significant link equity. [5] OR can be used with noindex likeso [3] 
no, PageRank not passed to destination
Robots.txt Tutorial
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