i have a website which is for example ( http://example.com ) when i try to test with SEO tool [woorank] 1.

1- i got this error:

Be careful. Your website without www doesn't redirect to www (or the opposite). It is duplicate content!

2- i have launched it from about 7 days and didn't get indexed.

p.s:

1. i have add the site to Google webmaster and show me no error.
2. google analytic works good without any problem.

thanks.