Google, Bing, and other search engines use the image’s file name for clues about the image’s subject matter. Once uploaded, it becomes part of the image’s URL: The image file name is the name you save it as on your computer before uploading it to your website. Search crawlers rely on a few key bits of data embedded in the image in order to “see” it: the file name, the image alt-tag, the title tag, and in some cases, the anchor text and the caption. How Search Crawlers “See” Images: Alt Tags, Title Tags, and File Names While machine learning has come quite a long way, cracking the code of making crawlers “see” and understand images on their own is still far off in the future. Image SEO is the process of helping search crawlers understand images.īecause they can’t actually see the image, search crawlers rely on additional information to determine what the image shows and how it relates to the content of a web page.
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