Storefront Speed JournalEcommerce performance, measured

Ecommerce speed, reported like it matters

Storefront Speed Journal covers how fast online stores actually load, what speed is worth in conversion, and the engineering trade-offs behind every millisecond - with methods, not marketing.

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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.

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