RAAKT is a toolkit to find basic accessibility issues in HTML documents. RAAKT can be used in an automated quality assurance process to increase developer awareness of accessibility issues and increase speed in accessibility analysis. RAAKT is written in Ruby and can therefore easily be integrated with Ruby on Rails.
Try the accessibility evaluation tool from here:
What does it test?
RAAKT has a number of test methods to evaluate fundamental accessibility aspects of an HTML document. The philosophy is that all tests should pass for all web pages, thereby making it easy for evaluators – you don’t have to do a manual assessment. For details of Raakt tests see the Raakt wiki test page.