In other words, a PageRank results from a “ballot” among all the other pages on the World Wide Web about how important a page is. A hyperlink to a page counts as a vote of support. The PageRank of a page is defined recursively and depends on the number and PageRank metric of all pages that link to it (“incoming links”). A page that is linked to by many pages with high PageRank receives a high rank itself. If there are no links to a web page there is no support for that page.
| The example on the right shows the reason of dominance of Google, which uses the PageRank algorithm. The table lists the top ten results for a search query “coffee.” |
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From the table, all three listings of search results seemed of equal quality. Search engine users are loyal to one or a few search engines and are generally happy with search results.
| Thus, as long as Google continues to provide results deemed high in quality, Google likely will remain the top search engine. |
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