<html> element must have a lang attribute
Ensures every HTML document has a lang attribute
Suggested fix: Fix any of the following: The <html> element does not have a lang attribute
<html xmlns="http://www.w3.org/1999/xhtml">Document should have one main landmark
Ensures the document has a main landmark
Suggested fix: Fix all of the following: Document does not have a main landmark
<html xmlns="http://www.w3.org/1999/xhtml">Page should contain a level-one heading
Ensure that the page, or at least one of its frames contains a level-one heading
Suggested fix: Fix all of the following: Page must have a level-one heading
<html xmlns="http://www.w3.org/1999/xhtml">All page content should be contained by landmarks
Ensures all page content is contained by landmarks
Suggested fix: Fix any of the following: Some page content is not contained by landmarks
<div id="content">
<div id="message">
<h2>The request is blocked.</h2>
</div>
<div id="errorref">
<span>20260301T032819Z-15557b45c5cjhbnphC1YTO4ct80000000km0000000002mvs </span>
</div>
</div>aria-hidden="true" must not be present on the document body
Ensures aria-hidden="true" is not present on the document body.
Elements must meet minimum color contrast ratio thresholds
Ensures the contrast between foreground and background colors meets WCAG 2 AA minimum contrast ratio thresholds
Documents must have <title> element to aid in navigation
Ensures each HTML document contains a non-empty <title> element
Headings should not be empty
Ensures headings have discernible text
Heading levels should only increase by one
Ensures the order of headings is semantically correct
All page content should be contained by landmarks
Ensures all page content is contained by landmarks