There's a new Google hack (or something I was not aware of) in town, and I'm in love with it. It allows to see an estimate of how many pages in specific domain are supplemental results. To see the hack in action, just type the following to Google:
site:
www.mydomain.ltd ***
Most of the headlines are about how much "waste" google is storing about itself (site:
www.google.com **) , but this hack is very usefull for checking competitors and clients. Google however is far away from being the largest entity in supplemental results index. For example Amazon has whooping 15 - 64+ million pages (depending if you are checking with or without
www.) in supplemental index, MySpace is in range of 5-71 million pages.