In 2007, Google Announced a marketing campaign in opposition to compensated back links that transfer PageRank.[23] On June 15, 2009, Google disclosed they experienced taken actions to mitigate the results of PageRank sculpting by use with the nofollow attribute on inbound links. Matt Cutts, a well-identified application engineer at Google, https://www.instagram.com/p/C3pvguZLJBH