Free SEO site analysis at Cuwhois.com

I would like to reccomend another site with free SEO tools :
www.cuwhois.com [not a link here]
The site is in Spanish, but easy to understand.
The information about the domain is presented in a nice form,with many extended info, besides standard checks it tries to find LANG tags, and If-Modified-Since server responses.
It gives you some information about the host server IP, country,ISP and hosting name, also other places using the same IP. The only problem I've met here is that the tools preffer the www.domain.name formand have some problems with interpreting results , when your main page is simple domain.name, and you use redirection from www to non www.
The main page is given a SEO points 0-10, however the score is not explained.
The site is also checked for presence of robots file and various formats of sitemaps.
Google,AlexaTechnorati ranks are checked as well, yet it seems to miss blogs ranked in Technorati.
The extended tools allow you to check duplicated index pages, and Domain Hacks - nice tool for domain name variations like typo's and similar names.

The whole site is great, and became one of my tools ( in spite of some notes above ).

[note for myself on one of the domains I've seen that server responds with iso 8859-1 set, while meta tag on page states UTF-8 coding. I am going to check if it has any SEO importance.]