Google’s policy on paid links

Google does not want people buying links for the purpose of getting PageRank.

Per Google:

However, some SEOs and webmasters engage in the practice of buying and selling links that pass PageRank, disregarding the quality of the links, the sources, and the long-term impact it will have on their sites. Buying or selling links that pass PageRank is in violation of Google’s webmaster guidelines and can negatively impact a site’s ranking in search results.

Read more on Google’s Policy on Paid Links

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