The text discusses the importance of the accessibility tree for AI agents reading websites. Unlike humans, AI agents rely on the accessibility tree, a simplified structural model of a webpage, to understand and interact with content. This model is crucial as automated bots now account for the majority of web traffic. The article highlights that the quality of accessibility data has declined for the first time in six years, making it harder for AI agents to interpret web pages. This is particularly relevant for marketing professionals, as it underscores the need to ensure websites are accessible to improve AI interaction, which can enhance user experience and engagement. By focusing on accessibility, marketers can ensure their content is effectively read and acted upon by AI agents, which are increasingly important in digital interactions.