Also known as “alt tag” or “alt description”, image alt text is what gets displayed on the browser in case the image doesn’t render properly because of any reason.
While Google and other search engine bots can’t read an image, they can read the HTML related to an image. By using the right text in image alt-tags, search bots can be made to understand the meaning and context of the images used in the content.
Optimizing image alt-text for the right keyword is a popular on-page optimization strategy and can help your images rank in Google’s image search results, thereby bringing in additional organic traffic.