How Google Ranks Websites by lorelle
Posting Frequency
How often you update your pages and add content is monitored over time. It isn’t just how much but when. If you update or add hundreds of articles within a very short time, this is suspicious, but if you rarely update your site or add content over time, then your ranking will probably drop. Finding a happy medium is still a hit and miss angle, but the information seems to point to consistency not just random spurts of energy.
If you consistently add content once a week, and it stays steady, then it is seen as stable. If you add content consistently every day, and then it drops to nothing, then this change indicates an instability. If you do hit and miss content updating and additions over time, and then suddenly post a ton of activity, this can also be seen as instability and suspicious. Steady and consistent, no matter how frequently, adds weight to the score.
Many researchers say that frequent new or updated content carries more weight than infrequent changes to the site. I could find nothing in the patent that lent proof to that theory, but showing consistent activity does work.
A “stale” page is one that is old and rarely attracts interest. A “fresh” page is one that is new, and will be watched to see what kind of interest it may attract. By updating a stale page on your site, you may attract new interest by rewriting or structuring the information and keywords to attract more attention, breathing life back into the page. Google monitors this “refreshing” of pages to show activity and an increase in interest, scoring high.
Not all “old” pages on your site need updating. If it is still attracting decent traffic, then leave it alone. It is working for you.
The patent also reveals that stable pages that are working which suddenly attract a “spike” in the number of incoming links or click throughs may be an indication of a change of site ownership or spamming. Google evaluates not only the content but the historical changes in the content of the page and the site and if the changes are dramatic and sudden, then the site will rank lower. Stability over time scores higher.
http://lorelle.wordpress.com/2005/09/19/secret-out-how-google-ranks-websites/