Cart Functionality vs Zen Cart
Head-to-head usage across the sites we track.
Top sites by authority
Cart Functionality · Zen Cart · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Cart Functionality · Zen Cart · share of sites in each country using one or the other
United States
729,127
496
United Kingdom
237,218
198
India
207,181
50
Germany
193,696
43
France
180,639
49
Canada
165,082
104
Brazil
144,613
19
Spain
143,412
44
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Cart Functionality | Zen Cart |
|---|---|---|
| LCP | 1.7 s | 1.3 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Zen Cart to Cart Functionality
| Domain | When |
|---|---|
| pizzeriadimare.fi | Sep 2026 |
| cigarhustler.com | Jul 2026 |