Images are a basic component of a website. If a search engine spider can’t see an image, important information can be lost. When this happens, it is a big mistake. All images should be “SEO-focused”. Images should be used to emphasize relevance. In the past and even now, image optimization was the main design goal. As mobile devices became more popular for surfing the web, designers began to pay attention to the size of images. Images that are “too big” boost the page size. Fully rendered pages with a smaller footprint can be crawled more quickly by the search engines. This is a better SEO-focused website.