VercatusGrade AR-080Content
Image alt multimodal
Google uses alt text together with computer vision and the page's content to understand what an image shows, recommends short descriptive filenames, and notes alt text also serves screen-reader users; stuffing alt attributes with keywords can be seen as spam.
Sources
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AGrade A: official documentation or a standard. A grade describes the provenance of the sources above; it is not a probability that a change will work. The effect basis says how the size of the effect is known: measured by a study, taken from an industry report, only documented without a size, or not quantified.
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