In 2007, Google announced a campaign against paid links that transfer PageRank.[27] On June 15, 2009, De zoekmachines disclosed that they had taken measures to mitigate the effects of PageRank sculpting by use of the nofollow attribute on links. Matt Cutts, a well-known software engineer at De zoekmachines, announced that https://reidepwcc.bloginwi.com/61833374/hoeveel-u-moet-verwachten-u-betaalt-voor-een-goede-snelheidsanalyse