When you start looking at backlinks, you quickly hit two words: "dofollow" and "nofollow". They describe whether a link passes ranking value to the page it points to. Here is the difference, and why a healthy site needs both.
Dofollow vs nofollow backlinks: what is the difference?
Dofollow links pass ranking value; nofollow links usually do not. But a healthy, natural backlink profile needs both. Here is why.
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