Useful if you work or live in a culturally diverse space

I just ran this by an HR person at my work and I am not sure if this link is culturally insensitive but has anyone else had the issue of not knowing a persons gender from their name because it is from a culture other than their own?
I found this great tool http://www.indianhindunames.com/find-gender-from-names.htm

A tool like this couldn't work in English, and I am sure every language has its exceptions, that are unisex, but I needed this to work on demographics for a study I performed where all I had was a name.
I think its useful... what do you think?