Why Core Web Vitals Still Decide Who Wins Search
Speed is a ranking signal and a conversion signal. Here is where the time usually goes.
Core Web Vitals measure what visitors feel: how quickly the main content appears, how fast the page responds to input, and whether the layout jumps while it loads. Search engines use them as a signal, but the bigger cost of a slow page is the visitor who leaves before it finishes.
On most sites we audit, the largest contentful paint is held back by the same few things: render-blocking CSS, web fonts that swap late, hero images without explicit sizes, and JavaScript that has to run before anything useful is shown.
The fixes are rarely exotic. Server-render the content that matters, inline the critical CSS, size every image, defer scripts that are not needed for the first view, and measure on a mid-range phone rather than a developer laptop.
Treat performance as part of the definition of done. A budget that fails the build is cheaper than a redesign two years later.