In 2007, Google announced a campaign in opposition to compensated links that transfer PageRank.[27] On June 15, 2009, Google disclosed that they had taken measures to mitigate the results of PageRank sculpting by use from the nofollow attribute on backlinks. Matt Cutts, a properly-recognised computer software engineer at Google, declared https://basreng18854310.smblogsites.com/29962297/the-best-side-of-spesialis-seo