The Storefront Speed Journal blog
What One Second of Load Time Actually Costs an Ecommerce Store
The conversion cost of a slow storefront is real but routinely misquoted. Here is what the public research says, what it does not say, and how to compute your own number.
Core Web Vitals for Commerce Sites: What Good Looks Like Now
LCP, INP, and CLS thresholds have not moved, but the share of stores passing them keeps climbing. Where the bar sits, and which metric fails most on storefronts.