by derek88 » Mon Aug 31, 2009 2:17 am
Here is a little piece or the algorithm, in order to help you understand guys.
GoogScore = (KW Usage Score * 0.3) + (Domain Strength * 0.25) + (Inbound Link Score * 0.25) + (User Data * 0.1) + (Content Quality Score * 0.1) + (Manual Boosts) - (Automated & Manual Penalties)
KW Usage Factors:
KW in title tag
KW in header tags
KW in document text
KW in internal links pointing to the page
KW in domain and/or URL
Domain Strength
Registration history
Domain age
Strength of links pointing to the domain
Topical neighborhood of domain based on inlinks & outlinks
Historical use & links pattern to domain
Inbound Link Score
Age of links
Quality of domains sending links
Quality of pages sending links
Anchor text of links
Link quantity/weight metric (Pagerank or a variation)
Subject matter of linking pages/sites
User Data
Historical CTR to page in SERPs
Time users spend on page
Search requests for URL/domain
Historical visits/use of URL/domain by users GG can monitor (toolbar, wifi, analytics, etc.)
Content Quality Score
Potentially given by hand for popular queries/pages
Provided by Google raters (remember Henk?)
Machine-algos for rating text quality/readability/etc
Obviously, this isn't a perfect summation of the algorithm by any means, but I have a strong suspicion that if we were to see the exact algorithm in perfect form,
Derek