The 7 Fastest Insider Ecommerce Sites

(September 2026) - real-user mobile speed from Google CrUX, 28-day window

Rank	Brand	CWV	LCP	INP	CLS
1	Maison Birks	PASS	1.2s	146ms	0.01
2	Seed Heritage	PASS	1.4s	178ms	0.01
3	La Prairie	PASS	2.5s	194ms	0.01
4	Signature Hardware	FAIL	2.6s	162ms	0.29
5	Helzberg	FAIL	2.7s	204ms	0.04
6	Vitamin Shoppe	FAIL	3.8s	194ms	0.40
7	Versace USA	FAIL	3.8s	390ms	0.14

Slipping down the league? 64labs builds the fastest front ends in ecommerce - Storefront Next launch partner.

Built by 64labs