I checked my website, http://underthesite.com/sites/lelanggokil.com http://underthesite.com/sites/lelanggokil.com Your analyzer mistakenly detected my website

I checked my website, http://underthesite.com/sites/lelanggokil.com http://underthesite.com/sites/lelanggokil.com Your analyzer mistakenly detected my website using Microsoft IIS and ASP.NET. Which is weird since it also detected Google App Engine (which is correct). ASP doesn't run on GAE. Just a thought, do you think website owners should mention technologies they use in HTTP header? For example your analyzer can't detect that I'm using Java and Spring framework.