ok ... well i wud suggest u to take up any website and analyze it ....
lets say u take up this website only ..... ie perusingtheshelves.com
1) now firstly u wud have to analyze its Pagerank - which is zero .... that means either the website is a new website or the website is poorly designed and haven't been optimized.....
2) PageRank also tells u bout the visibility og the website ..... ie if the website is small and has less traffic .... its bound to have less score
where as a website like yahoo which is very large .... huge traffic ..... has higher PR (Page Rank )
yahoo.in has PR of 9/10
google has 10/10
3) Then we come to the seo score ..... its shown by a website whois.sc ....
eg see this link You are not allowed to view links.