Alt Text, short for alternative text, is a crucial element in digital marketing used to describe the appearance and function of an image on a website. It helps improve web accessibility by providing a textual alternative to visual content for visually impaired users utilizing screen readers. Alt text also serves SEO purposes by helping search engines understand and index an image properly, potentially boosting the site’s rankings and visibility in image search results. Effective alt text is concise, descriptive, and relevant to the image and context, enhancing both user experience and site optimization.