http HEAD vs GET performance

Question

I am setting-up a REST web service that just need to answer YES or NO, as fast as possible.

Designing a HEAD service seems the best way to do it but I would like to

Answer 1

Your performance will hardly change by using a HEAD request instead of a GET request.

Furthermore when you want it to be REST-ful and you want to GET data you should use a GET request instead of a HEAD request.