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:
Information and user interface components must be presentable to users in ways they can perceive.
User interface components and navigation must be operable.
Information and the operation of user interface must be understandable.
Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.