Question: Which of the following is NOT a common accessibility error found on web pages?
- Missing h4 elements
- Missing form input labels
- Missing alternative text for images
- Low contrast text
Explanation
HubSpot’s accessibility guidance highlights common problems such as missing form labels, missing alt text, and insufficient color contrast because these directly block access to content or controls. A missing specific heading level is different because accessibility depends on a logical heading structure, not on the presence of one exact tag. An interface can be fully accessible without any h4 elements if the document outline remains meaningful and sequential. The issue is improper heading hierarchy, not the absence of a particular heading level by itself.
Why the other options are incorrect
B) Missing form input labels is a common accessibility problem because unlabeled inputs make forms difficult for screen readers and other assistive technology.
C) Missing alternative text for images is a common accessibility problem because meaningful images need alt text to communicate their purpose.
D) Low contrast text is a common accessibility problem because weak color contrast reduces readability for many users.
Source for verification
https://developers.hubspot.com/docs/cms/best-practices/improve-existing-sites/accessibility
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