Which component is NOT part of document level accessibility features?

The correct response highlights that working links that announce themselves are not specifically categorized under document level accessibility features. This is because the aspect of links announcing their function or purpose is more closely related to individual element accessibility, which focuses on how elements like links interact with assistive technologies depending on their context and attributes.

In terms of document-level accessibility features, components like focus resetting to the first field, the presence of a lang attribute, and default harness title settings for screen readers are all essential elements that contribute to the overall accessibility of a web page or application. These features ensure that the structure and content of the document are presented in a way that is understandable and navigable by assistive technologies, thereby enhancing the user experience for individuals with disabilities. Each of these elements supports a logical flow and context for screen readers and other assistive technologies, ensuring that users can effectively navigate and comprehend the content.