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Originally Posted by charlesgan suddently think of this today, by using the meta index nofollow, this can prevent the bot from crawling to external site, and thus preventing links to unrelevant site, and to bad neighbourhood as well. is there any proof that this helps page ranking? |
Definitely not! but in yahoo theres an allegation which i also believed (am just playing safe) that they don't give bad effect for those links who had no-follow attribute.