W3School.com

1. Yes the Home page validate but there are errors.
2. Yes the other page on the site also validates with errors as well.
3. There are 4 errors and warning on the home page, and there 15 errors plus warning on the other page on the site. So all togather there are 19 errors and warning.
4. I rate it 6 because it looks good when looking at the site but then when you validate it shows all that errors and warining. I also don't know why the website is working since it showed all the errors.
5. I rate the site usabilty 9 it looks good when using it.
6. I think the site meets its purpose because I guess they didn't only use html to design it.