website ranking for the site in all included pages, including the page. The search engine is computed page score (Google Webmaster Tools), so we need is the page ranking, not just home page ranking.
2. content score
but not absolute, this is like running a red light, just.
page in the link, we can according to the needs of users to recommend related articles, plays a role in the chain is recommended, on the other hand, to meet the needs of users.
3. users vote: residence time, visit depth, bounce rate and so on factors that can reflect the user experience of the website. Search engines rely heavily on this point to give a good ranking page.