Image credit: backlinksuniversity.com |
In order to stop this practice, Google has been recently granted a patent named “Ranking nodes in a linked database based on node independence”. This patent describes that multiple links from affiliated nodes (webpages) are deemphasized, enabling them to pass a little value of the overall importance of the web page. Many high authority commercial sites often link to each and every of its affiliated site in order to pass on the full value of the domain to its affiliated sites. But, this patent points to techniques that can be algorithmically
applied to reduce the possible effect on the rank by a single entity (single resource, node or a domain), such as a commercial “link farm” attempting to artificially boost the rank of certain nodes. Also, the maximum vote amount that a single node can pass is capped to a full vote value. A high authority or high linked resources also known as “super nodes” often receive an extremely high number of inbound links and therefore has the power to boost the rank of any other node it links to. But, such nodes are restricted from having undue influence on the ranks of the nodes to which it links. This is done by checking the possible affiliation or ownership to the nodes the super node links to. Checking WHOIS information and several other techniques are applied in order to find out this relationship.
Check out the full patent here: Ranking nodes in a linked database based on node independence
Recommended reading: Google Paid Link Patent
Also See:
Order Ahead with a Mobile Device
How Google Uses Contextual Search Terms
Taxonomic Classification to Find Real Context of Words
Google Tag Manager
Multi Channel Funnel in Google Analytics
Regular Expressions on Google Analytics
Search Queries in Webmasters Tools