Google Competition Analyser - Web Stats Ninja is an application designed to analyze any numbers of Websites : PR, Alexa, Backlinks, Cubestat, Host IP, Est.Daily Ravenue, Registrar, Monthly visits, Top search query, Upstream sites, downstream sites.
This is super valuable when doing SEO (Search Engine Optimization) for your website. You can analyze your competition and understand how difficult it will be to out rank them. Running this tool once for ALL of your own websites then save all these valuable information to excel automatically for further references. Because knowing exactly your competitors web statistics are the very first step to prepare your winning strategy.