BigCommerce site speed
How fast BigCommerce websites load on a phone, from Google PageSpeed tests of 29 BigCommerce sites, and which popular ones are slowest. Use it to benchmark your own site, or to find BigCommerce sites that need speed work.
Real users: 34% of the 29 BigCommerce sites with Chrome UX Report data are rated fast overall (good loading, responsiveness and layout stability).
Slowest popular BigCommerce sites
Lowest mobile PageSpeed scores among BigCommerce sites in the Tranco top million. One lab test each, so a score can move from day to day.
| Site | Industry | Mobile score | LCP | Page weight |
|---|---|---|---|---|
 Graphicproducts graphicproducts.com | – | 17 | 32.3s | 19.9 MB |
 AS Colour ascolour.co.nz | – | 26 | 9.5s | 22.9 MB |
 Alfred Dunner alfreddunner.com | – | 29 | 15.6s | 9.4 MB |
 Chairking chairking.com | – | 31 | 16.6s | 8.1 MB |
 Cariloha cariloha.com | – | 37 | 33.3s | 8.8 MB |
 Cass Art cassart.co.uk | – | 39 | 8.9s | 4.1 MB |
 Buck Knives buckknives.com | Industrial manufacturing | 41 | 17.7s | 5.3 MB |
 Americanleather americanleather.com | – | 41 | 29.4s | 5.3 MB |
 Carson Dellosa Education carsondellosa.com | – | 42 | 4.6s | 4.3 MB |
 Bents Garden Centre bents.co.uk | – | 48 | 29.4s | 15.9 MB |
 Arbo arbo.it | – | 49 | 9.0s | 3.2 MB |
 Evans-mfg evans-mfg.com | – | 53 | 10.0s | 5.5 MB |
 Allpointsfps allpointsfps.com | – | 55 | 6.8s | 4.8 MB |
 Artist & Craftsman Supply artistcraftsman.com | – | 56 | 65.9s | 17.8 MB |
Every slow BigCommerce site, as a list
All BigCommerce sites scoring under 50 on mobile, filtered by industry, country or popularity, with what slows each one down, company details and contacts. Credits included to start.
Third parties BigCommerce sites load most
- Google Fonts86%
- Google Tag Manager83%
- Google Analytics62%
- Google/Doubleclick Ads48%
- Other Google APIs/SDKs41%
- Google CDN34%
- Facebook34%
- Bing Ads31%
- JSDelivr CDN31%
- shgcdn3.com31%
Fastest popular BigCommerce sites
- Artist & Craftsman Supply artistcraftsman.com56
- Allpointsfps allpointsfps.com55
- Evans-mfg evans-mfg.com53
- Arbo arbo.it49
- Bents Garden Centre bents.co.uk48
- Carson Dellosa Education carsondellosa.com42
- Buck Knives buckknives.com41
- Americanleather americanleather.com41
- Cass Art cassart.co.uk39
- Cariloha cariloha.com37
How this is measured
Each site's home page is tested with Google PageSpeed Insights (Lighthouse, simulated mid-range phone on a slow 4G connection) when it's enriched; real-user ratings come from the Chrome UX Report where Google has enough visits. Only sites in the Tranco top million are named. See also websites using BigCommerce. Updated October 2026.
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