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Age of site |
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Length of time the domain has been registered |
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Age of content |
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Frequency of content: regularity with which new content is added |
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Text size: number of words above 200-250 (not affecting Google in
2005) |
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Age of link and reputation of linking site (authority) |
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Negative scoring for on-site factors |
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Uniqueness of content |
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Related terms used in content (the terms that the search engine
associates as being related to the main content of the page) |
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Google Page rank (Only used in Google's algorithm) |
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External links, the anchor text in those external links and in the
sites/pages containing those links |
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Citations and research sources (indicating the content is of
research quality) |
|
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Stem-related terms in the search engine's database (for example,
finance/financing) |
|
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Incoming back links and anchor text of incoming back links |
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Negative scoring for some incoming back links (perhaps those
coming from low value pages, reciprocated back links, etc.) |
|
|
Text surrounding outward links and incoming back links. A link
following the words "Sponsored Links" could be ignored |
|
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Use of "rel=no follow" to suggest that the search engine should
ignore the link |
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Metrics collected from other sources, such as monitoring how
frequently users hit the back button when SERPs send them to a
particular page |
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Metrics collected in data-sharing arrangements with third parties
(like providers of statistical programs used to monitor site
traffic) |
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Rate of removal of incoming links to the site |
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Hosting uptime |
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Broken outgoing links not rectified promptly |
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Unsafe or illegal content |
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Quality of HTML coding, presence of coding errors |
