AccessibleAI Guides Website Accessibility Testing with Screen Readers
Automated tools identify only 30-40% of website accessibility issues. AccessibleAI emphasizes manual screen reader tests are crucial for understanding user experience.
AccessibleAI has released a guide on testing website accessibility using screen reader software like NVDA and VoiceOver. The company states that automated tools detect only 30-40% of accessibility problems, leaving a significant portion of user-facing barriers unidentified.
The guide highlights that true user experiences, particularly from the perspective of blind and visually impaired individuals, are best revealed through manual testing. Free screen readers, such as NVDA for Windows and Apple's VoiceOver, are presented as key tools for these evaluations. NVDA, widely used internationally, is noted for its quick installation.
AccessibleAI particularly recommends testing website navigation solely via keyboard, verifying the logic of heading structures, and ensuring proper use of images and alt-text. The usability of forms and the behavior of dynamic content, like pop-up windows, with screen readers are also deemed essential.
According to the company, common surprises during testing include poorly described links, unnecessary reading of image file names, and unclear form field labels. AccessibleAI reminds users that comprehensive screen reader testing does not require deep expertise but should be conducted regularly, especially after significant website modifications.