Google's Matt Cutts has revealed that having too many nofollow links won't have a negative impact on a site's search rankings.
Nofollow are used on a frequent basis by professionals in the SEO industry to directing traffic to sites. By assigning a nofollow value, webmasters can instruct to some search engines, such as Google, that they shouldn't influence the target site's ranking.
However, some sections have questioned whether having a significant number of nofollowed links directed at one site could highlight an issue - i.e. not trustworthy, poor quality - with the targeted site.
Cutts, though, speaking in the latest of Google's webmaster help tutorials, revealed that this wasn't the case, and that in the majority of cases nofollow links would not have a detrimental impact.
He then went on to bring up an example in which they could lead Google to take action, stating: "That said, let me just mention one weird corner case, which is if you are leaving comments on every blog in the world, even if those links might be nofollow, if you are doing it so much that people know you and they're really annoyed by you and people spam report about you, we might take some manual spam action,for example."
Then he later commented: "So we carve out a little bit of an exception if we see truly huge-scale abuse. But for the most part, nofollow links are dropped out of our link graph as we're crawling the web, and so those links that are nofollow should not affect you from an algorithmic point of view."
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