Sometimes you have to step back and ask why a tradition exists. In mobile-first design, serving an image in three sizes — one for smartphones, one for tablets and one for desktops — using media queries and responsive images has become a tradition. But is it the best solution?
It’s most likely better than doing nothing, but how well does it actually work? And is there room for improvement? In this article, we’ll look closely at how well the one-size-per-form-factor approach really works and how we can use smart content delivery networks to improve image performance.