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Supplemental Result : ウィキペディア英語版 | Supplemental Result
A supplemental result is a URL residing in Google's supplemental index, a secondary database containing pages of less importance, as measured primarily by Google's PageRank algorithm. The importance of a page is measured by the number and quality of links pointing at it.〔(Google Technology )〕 The degree to which Google trusts a site's inbound links also influences the importance of a page. If Google detects paid links, for example, it will devalue the links or nullify them completely so that PageRank will not pass to the target page.〔(Search Engine Spam? ) Matt Cutts: those links ... have not been trusted in terms of linkage for months and months.〕 A supplemental page will still rank in search results, but only if there are not enough pages in the main index that are returned within the search. Google used to place a "Supplemental result" label at the bottom of a search result to indicate that it is in the supplemental index; however in July 2007 they discontinued this practice and it is no longer possible to tell whether a result is in the supplemental index or the main one.() (). ==Causes of Supplemental Results==
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「Supplemental Result」の詳細全文を読む
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