“Alt text” means “alternative text.” It is a short written description of an image, used when the image cannot be seen.
People use alt text on websites, blogs, and social media to explain what a picture shows. It helps screen readers describe images to people who are blind or have low vision, and it also helps search engines understand the image.
Meaning & Usage
Alt text is usually added to an image behind the scenes. Most people do not see it unless the image does not load or they use assistive technology.
Examples
If there is a photo of a dog playing in a park, the alt text might say: “A brown dog running on grass in a park.”
If there is a product photo, the alt text might describe the item clearly, such as: “Black leather office chair with armrests.”
Why is alt text important?
It makes images more accessible and helps everyone understand the content, even if the picture is missing or cannot be viewed.
Where do people use alt text?
People use it on websites, online stores, blogs, and social media posts whenever they upload an image.
Does alt text need to be long?
No. It should be short, clear, and describe the image in a simple way.
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