Global rank# 168,704
Topics of expertise
Carsten Zimmermann's main area of expertise is rack-middleware , and is also an expert on recaptcha and mruby . Carsten Zimmermann is recognized as Rack-middleware Top-100Recaptcha Top-100, and Mruby Top-100 . A Github user since 2009 , Carsten Zimmermann is ranked as #168,704 globally .
Additional areas of expertise: captcha, sinatra, and csp