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+
141
0
Open Page Rank 8+
2,489
0
Open Page Rank 7+
10,234
0
Open Page Rank 6+
20,359
0
Open Page Rank 5+
37,013
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
712,664
38
United Kingdom
235,233
26
India
204,930
26
Germany
195,237
24
France
178,625
22
Canada
161,914
26
Spain
143,486
20
Italy
141,982
20
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 |
| TTFB | 700 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Oct 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.