http://www.iwebtool.com/pagerank_prediction?domain=www.digitalpoint.com It show 'Insufficient backlinks' but when I input http://xxx.xxx.xx/ http://www.iwebtool.com/pagerank_prediction?domain=http://www.digitalpoint.com/ PR can be Predicted data Why show 'Insufficient backlinks'
Backlink means linking your site from other site. Here you can see many links that linking other sites, these are backlinks for their site. 'Insufficient backlinks' means not too many link from other site to DP