Redirecting to /impressum/�����ƽ�� is committed to making its websites accessible, in accordance with the technical standard for websites and mobile apps, en 301 549. this closely follows level aa of the web content accessibility guidelines (wcag) version 2.2. the revised 508 standards also incorporate by reference the wcag 2.0 level aa success criteria, and apply the wcag 2.0 level aa success criteria and conformance requirements to both web and non-web electronic content..