The CDP.it site was made by CDP - Comunicazione Digitale.
This site, built to the standard model of the Web Content Accessibility Guidelines 2.0 is:
Perceivable
Information and user interface components must be presentable to users in ways they can perceive.
Operable
User interface components and navigation must be operable.
Understandable
Information and the operation of user interface must be understandable.
Robust
Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.
Technical requirements
Browser: compliant with W3C standards; Javascript active on the browser is required.