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Parasite hosting, in computing, is the process of hosting a website on someone else's server without their consent, generally for the purpose of search engine benefit.〔http://cognitiveseo.com/blog/5442/4-techniques-to-identify-if-your-site-is-abused-by-parasite-hosting-seo-doorways/〕 == Mechanism == Search engines such as Google rank search results based on the relevance to the search query and other websites linking to it. Google PageRank has not been updated since 5 December 2013,〔John Mueller, Google Webmaster〕 however, Page Rank is still being used in the Google Algorithm as John Mueller has confirmed this on 02/06/2015 in a Webmaster Hangout. What still affects the ranking is Page and Domain Authority. Evil minded people take advantage of this, by gaining illegally access to their victims webhost and adding a sub-domain or a sub-page. Those sub-pages are providing content which is mostly complete different compared to the root domain. The sub-page contains outbound links and benefits of the roots domains/page authority, leading to a high ranking on search engines. This method became very popular in 2007, but is still being abused today. In contrast to Website defacement parasite hosting´s main goal is profit, either through sales or other kind of advertising. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Parasite hosting」の詳細全文を読む スポンサード リンク
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