Build accessibility into the website from the start
Accessibility is more reliable when designers and developers work together before interface and content decisions are fixed. Early collaboration helps teams account for practical requirements such as text contrast, responsive behaviour and use with mouse, touch and keyboard input. It also avoids the cost and disruption of trying to retrofit inclusive features after a build is close to launch.
A corporate website should treat inclusion as a delivery requirement across design, development and quality assurance. This matters especially where a site serves multiple audiences, markets or business units, because patterns and content can otherwise become inconsistent as the estate grows. Build teams should identify likely barriers early, confirm what can be implemented, and make accessibility part of the criteria for approving each page, component and interaction.
Sources: Designing and developing web experiences for everyone