Aged, Used, Expired Domains
Due to sandbox problem, various penalties and filters, some of my friends have tried to use aged, used and expired domains. Results are surprisingly contradictory.
Expired domains appeared to be bad idea in 95% of cases, because usually Google filters expired domains out for a couple of months, especially if such domains were listed in dmoz. There were only few cases, when domain name has been listed in dmoz.
Used domains are good if you make everything wise. For instance you have a lot of information on some subject. And you manage to rebuy the domain that perfectly fits your needs. It is a wise decision to buy hosting account, where it was primarily hosted and replace old information step by step - not do delete everything and set up absolutely different site. Google tracks changes of IP address, so moving to other host can cause Page Rank loss and temporary penalty. Immediate change of all content of site can cause the same penalty, unless it was a dynamic site that changed daily.
Aged domains are same thing to used, but they are good because of their age - they are usually bypassing sandbox and a couple of other penalties and filters. Again, the only condition of building site on such domain is wise use.
This information is taken from my own experience and thoughts shared by friends. If you disagree or have something to add - waiting for your comments.
Filed under: Google Optimization