The 10 Fastest Science Supplies Ecommerce Sites

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

Rank	Brand	CWV	LCP	INP	CLS
1	Celestron	PASS	1.5s	129ms	0.02
2	Home Science Tools	FAIL	2.1s	188ms	0.12
3	Nasco Education	FAIL	2.1s	179ms	0.17
4	Carolina Biological	FAIL	2.5s	269ms	0.03
5	AmScope	FAIL	2.7s	152ms	0.33
6	LabPlanet.com	FAIL	3.1s	79ms	0.02
7	Fisher Scientific	FAIL	3.4s	150ms	0.03
8	Texas Instruments	FAIL	3.5s	300ms	0.07
9	Flinn Scientific	FAIL	5.5s	129ms	0.33
10	Ward's Science	FAIL	5.6s	165ms	0.66

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