Buying links nofollow, noindex?

Hi all.

See links to noindex nofollow in the external links section in webmaster Yandex and Google? Whether they were considered natural (not seo) and I give the site referenced? Whether they are in terms of a reference mass, and why? For the trust sites of the acceptor?
June 27th 19 at 15:12
2 answers
June 27th 19 at 15:14
If the project is serious and resources allow - I would have these links did not disdain purely for naturalness.
Plus nofollow links is that they are least are the SEO links than others.
June 27th 19 at 15:16
Where I saw this view and I thought it reasonable:
that the absence of nofollow and noindex links with a large number ve normal - is a sign of black seo. So I guess indirectly they influence. Not tested.

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