CIW Web Design Specialist Certification Practice Exam

Alt text, or alternative text, serves a critical role in web accessibility by providing descriptions of images for visually impaired users who rely on screen readers to understand the content of a webpage. When an image is displayed, the screen reader reads the alt text aloud, allowing users who cannot see the image to comprehend its purpose or the information it conveys. This makes the web more inclusive, ensuring that all users have equal access to content, regardless of their visual abilities.

In addition to benefiting visually impaired users, alt text can also help improve search engine optimization (SEO), as search engines use it to index images more effectively. However, its primary importance lies in its function as an accessibility feature, which is essential for meeting web accessibility standards and guidelines. This ensures a more user-friendly experience for everyone on the internet.