Images are an important part of the user experience for the Web and apps alike. However, images are no longer simple. There are many strategies for optimizing images: new image formats, responsive image markup, client hints, chroma subsampling, structural similarity, HTTP/2 priorities, progressive encoding, and more. Each of these strategies improves the end-user experience but can add new complexities to creating maintaining and monitoring the enterprise.
It isn’t just the end consumer that needs high-performance images; other competing users need to be considered, including marketing, devs, operations, and security. These users all have different requirements and expectations:
Sometimes promoting one set of performance improvements feels like a Faustian bargain, where some users are benefiting more than others. In this practical, Choose Your Own Adventure-style tutorial, Colin Bendell tries to find the perfect balance for all users, offering a practical guide that explores different strategies and outlines recommendations to address each of the different user profiles.
Colin Bendell is co-author of High Performance Images and part of the CTO office at Cloudinary. He is passionate about performance, design and data
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