What is the importance of alt text in images?

The significance of alt text in images lies primarily in its role in enhancing accessibility and improving search engine optimization (SEO). Alt text serves as a textual alternative to images, allowing users who cannot see the image—such as those using screen readers or browsing with images disabled—to understand the content and context of the visual elements.

In terms of SEO, search engines rely on alt text to index images effectively and determine their relevance to specific search queries. Properly implemented alt text can boost a website’s visibility in search results, making it an essential component for marketers and content creators aiming to enhance their online presence.

While other options address various aspects of image usage, they do not capture the core function of alt text as effectively. Enhancing image quality or reducing file size does not pertain to the purpose of alt text, nor does tagging on social media, which relates more to social media platforms than to image accessibility or SEO. Thus, the role of alt text in providing descriptions for accessibility and SEO is crucial for both user experience and search visibility.