What does "robust" refer to in the context of web accessibility?

In the context of web accessibility, "robust" refers to the need for content to be reliably interpreted by various user agents. This means that accessible web content should function correctly across different platforms, devices, and assistive technologies. Ensuring that web content is robust enhances compatibility, allowing it to be understood and navigated by a wide range of users, including those using screen readers, voice recognition software, or alternative input devices.

The robustness of content ensures that as technologies evolve or user agents update, the web content remains functional and accessible. This principle supports the idea of inclusivity, ensuring that all users, regardless of the tools they use, can access the same information and functionality effectively.

Attractiveness of web content and its availability on specific devices does not align with the concept of robustness in accessibility. Additionally, while it is important for content to be analyzable by search engines, this aspect focuses more on SEO practices rather than the core principles of web accessibility.