Images with good alt text are also more likely to appear in the Images area of Google search results, which helps expand your impressions.
Alt text is primarily an accessibility tool and is used by screen readers to describe images to website visitors who are blind or have low vision. However, it is also one of the things search engines look at to determine what your web page is all about. Images with good alt text are also more likely to appear in the Images area of Google search results, which helps expand your impressions.