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Evaluating Alternative Text

When evaluating the alternative text of images, remember that the alternative text (whether in the image’s alt attribute or in adjacent text) should convey the content and function of an image. Asking the question, “If the image could not be used, what text would replace the image?” is often a good way to determine appropriate alternative text. First, view the alternative text along with the image. Is the alternative text equivalent to the content of the image? Second, disable images and view the alternative text in place of the image and consider if the alternative text makes sense in its context and reading position within the page.

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