Canvas (HTML)

The HTML content contains images without a description: Images do not include alternative text, preventing screen readers from describing the content to users. 

The HTML content contains links without discernible text: Links are missing meaningful text or use vague wording, making it unclear where the link will take users. 

The HTML content contains broken links: Links do not lead to a valid destination, preventing users from accessing the intended content. 

The HTML content does not have any headings: The page lacks headings, making it difficult for users—especially those using screen readers—to navigate the content. 

The HTML content has empty headings: Headings are present but contain no text, which can confuse screen reader users. 

The HTML's heading structure does not start at the right level: Headings are used out of order or skip levels, disrupting the logical structure of the page. 

The HTML content contains text with insufficient contrast: Text does not have enough contrast against the background, making it difficult to read. 

The HTML content has tables that don't have any headers: Tables are missing header rows or columns, making it difficult to understand the data. 

The HTML has videos without captions or with automated captions: Videos either lack captions or rely only on auto-generated captions that may be inaccurate.