If you manage a website, you know that speed is everything. A one-second delay in page load time can lead to fewer page views, a drop in conversions, and a lower search engine ranking. More often than not, the single heaviest component of a web page is its images. For decades, we've relied on two main formats: JPEG for photos and PNG for graphics with transparency. But both are 20th-century technologies in a 21st-century web.
