By 2004, search engines had included an array of undisclosed things inside their ranking algorithms to decrease the impact of backlink manipulation.[23] The leading search engines, Google, Bing, and Yahoo, tend not to disclose the algorithms they use to rank pages. Some Search engine optimisation practitioners have studied various https://googleseooptimizationserv69913.luwebs.com/26980668/google-search-optimization-an-overview