Cart Functionality vs Commerce Server
Head-to-head usage across the sites we track.
Top sites by authority
Cart Functionality · Commerce Server · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
146
0
Open Page Rank 8+
2,468
0
Open Page Rank 7+
10,226
0
Open Page Rank 6+
20,356
0
Open Page Rank 5+
37,111
3
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 · Commerce Server · share of sites in each country using one or the other
United States
737,680
39
United Kingdom
239,464
28
India
207,201
27
Germany
196,505
23
France
181,709
22
Canada
166,395
25
Brazil
145,168
15
Italy
138,310
21
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Cart Functionality | Commerce Server |
|---|---|---|
| LCP | 1.7 s | 2.1 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0.05 |
| TTFB | 700 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.