Alt text (Alternative Text) is a written description added to an image’s HTML code that explains what the image depicts. Screen readers use alt text to communicate image content to users who are blind or visually impaired.
Alt text should be concise but descriptive, accurately reflecting the image’s purpose. It avoids generic phrases like “image” or “photo,” and focuses on what the image conveys in context.
Why it matters:
Alt text helps people who use screen readers or who can’t see the images understand the visual content. It also helps search engines understand your images, which can boost SEO.
It’s an important part of meeting accessibility standards and enhancing user experience for all visitors.
Best practices:
Include concise and accurate descriptions that reflect the image’s purpose or content. Avoid vague phrases like “image” or “photo,” and focus on what’s important about the image in context.
Where it’s used:
Alt text is used in website images, product photos on e-commerce sites, blog post graphics, social media posts, email marketing campaigns, and anywhere images appear online.
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