Core Web Vitals in online retail: 1034 shops measured

In online retail, revenue is tied directly to load time. A product page that shows up a second later costs orders, and the effect is stronger on a phone than on a desktop. The values below come from field data of real Chrome users. They show where a shop sits against other shops, not against websites in general.

For Core Web Vitals, online retail ranks 14th of 18 industries, behind food and restaurants, ahead of manufacturing and industry. All medians stay within Google's thresholds, closest to the limit is INP at 185 ms against 200 ms.

What usually slows online retail down

Shops carry the weight of product imagery and third-party scripts. Review widgets, chat windows and tracking share the main thread with cart logic while the visitor is already scrolling. The biggest lever is usually the imagery above the fold, together with everything that loads before the first interaction although it is only needed later.

Which online retail pages to test first

Test the product detail page and the category listing before the home page. Most organic and paid traffic lands on those two templates, and they carry the heaviest imagery and the most third-party code. The checkout deserves a test of its own, because payment providers add scripts exactly where a slow response costs the most.

Which metric is at risk in online retail

INP decides how a shop feels: adding a variant to the cart or opening a filter runs through the main thread. LCP is usually the product image at the top, so the file size and loading priority of that one image matter more than anything below it. Layout shifts come mostly from late price badges and review stars.

Step-by-step fixes: Website Speed Optimization.