Alt Text

A textual description of an image that is embedded in the HTML code and read aloud by screen readers, providing blind and low vision users with information about visual content. Effective alt text is concise, descriptive, and context-appropriate — a decorative image may need only an empty alt attribute, while an informational image requires a description of its content and purpose. Alt text is a fundamental requirement of web accessibility under WCAG and is one of the most common accessibility failures found in web audits.