Alt text, short for alternative text, refers to text that describes online images. This description provides people with visual disabilities detailed explanations of an image’s content, context, and purpose.
When people with visual disabilities access a website or social media platform, screen reader technologies built into their devices or operating systems read the alt text aloud. This feature ensures visual content is accessible to a broader audience.
Alt text also improves search engine optimization (SEO) by giving context to images, helping search engines understand the image content, and increasing website visibility in search results.
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