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A WordPress performance plugin should not be judged by one clean PageSpeed Insights screenshot.
That screenshot is useful. It shows what happened in a controlled lab run. But your visitors do not all use the same device, network, location, theme path, checkout flow, or third-party script timing. Core Web Vitals are judged in the field, across real users.
JPEG-XL and AVIF are two of the most advanced modern image formats available today. Both aim to replace older formats like JPEG and PNG by delivering smaller file sizes without sacrificing image quality. Choosing between the two, however, is not straightforward. They were built on different codecs, have different levels of browser support, and perform differently depending on the type of image and use case.
If you care about web performance, Core Web Vitals, and delivering the best possible experience to your visitors, picking the right format matters more than ever.
It has been some years since Early Hints became available but its adoption hasn't been as high as preloading or prerendering.
During a page load, one of the most overlooked sources of wait time is not slow assets or unoptimized images, it is the gap between when the browser makes a request and when it receives enough information to start doing something useful, also known as server response time.
That is the exact problem Early Hints was designed to fix!
Every once in a while, we come across new techniques to improve Web Performance.
Preloading the critical resources on a Web Page can bring numerous performance benefits.