Image SEO refers to the practice of optimizing images on a website to improve its visibility in search engine results. This involves using descriptive file names, alt text, and captions that accurately describe the image content. By doing so, search engines like Google can better understand the context of the images, which can lead to higher rankings and increased traffic. Additionally, optimizing image size and format is crucial for enhancing website performance. Smaller, well-compressed images load faster, improving user experience and reducing bounce rates. Properly optimized images can also appear in Google Images search results, providing another avenue for attracting visitors to a website.