This sponsored article was created by our content partner, KeyCDN. Thank you for supporting the partners who make SitePoint possible. Image optimization is a big deal when it comes to website performance. You might be wondering if you’re covering all the bases by simply keeping file size in check. In fact, there’s a lot to consider if you truly want to optimize your site’s images. Fortunately, there are image processing tools and content delivery networks (CDNs) available that can handle…