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Section 2: The standards we follow
Our target is Level AA of WCAG 2.1, the Web Content Accessibility Guidelines issued by the W3C (World Wide Web Consortium). The guidelines are built on four principles, often remembered as POUR:
PPerceivable
Information is presented in ways every visitor can take in, such as text alternatives for images and enough contrast between text and its background.
OOperable
Each control and each route through the site can be operated by keyboard, by voice or through another input device.
UUnderstandable
Text reads clearly, and the interface behaves in consistent, predictable ways.
RRobust
Standard markup keeps content working with today's assistive technologies and gives it the best chance of working with tomorrow's.
We check the site against these guidelines with automated testing tools and by hand, covering keyboard use, zoom and color contrast, and we act on what turns up. We aim to repeat those checks whenever the site changes.