91App vs Cart Functionality
Head-to-head usage across the sites we track.
Detections for 91App end in Jan 2021. The fingerprint catalog behind our crawls no longer carries that technology as its own entry, usually because it was retired or split into more specific ones, so its figure is the last recorded and is not directly comparable with a currently tracked technology.
Top sites by authority
91App · Cart Functionality · 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
91App · Cart Functionality · share of sites in each country using one or the other
United States
4
737,680
United Kingdom
3
239,464
India
4
207,201
Germany
3
196,505
France
0
181,709
Canada
3
166,395
Brazil
0
145,168
Italy
0
138,310
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | 91App | Cart Functionality |
|---|---|---|
| LCP | 2.2 s | 1.7 s |
| INP | 75 ms | 75 ms |
| CLS | 0.2 | 0 |
| TTFB | 800 ms | 700 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.