Adding alt text to media
Alt (alternative) text describes a media item and is an important part of a product description. If a media item can't load for any reason, then alt text is shown instead. It's also used by assistive technology to describe an image to a customer who's visually impaired. Including alt text can boost yourwebsite's SEO.
Keep your alt text brief and descriptive. The maximum length is 512 characters, but 125 or less is recommended.
You can alsoupload alt text in a CSV file.