It's based mostly on backlinks and SEO. You have 0 , because your website it's really new, and no backlinks to it , yet. Check out here: http://www.networksolutions.com/whois/results.jsp?domain=primatemonkey.com
My new site http://www.acidrefluxtoday.info also got 0, but it was launched yesterday. So tool is correct.
Try again , we only have a few servers.... We will be adding new servers when this service will be made public. By the way by the tomorow we will show a very detailed rank. Based on keywords. So you will see every top keyword from a website, and it's RealRank, like : free php scripts : RR50 php scripts: RR20 ,etc I am working now to make this script precise. So a keyword like "softgroups" to be in most cases RR100 , because it's not so popular as the keyword "free" for example Just wait, i am coding ...
You know what would be neat? If the output was something like: submit express where it compares your sites rank to other popular sites, so you can see how you compare
12/100 for one of my sites. Lol pretty accurate but iwebtool prediction says it'll be pr4 next update
yes i changed the algorithm today 20-40 it's for normal website from 50 +++ it's very good at 80-100 it's amazing