CartStack vs OptiMonk
Head-to-head usage across the sites we track.
Top sites by authority
CartStack · OptiMonk · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
2
Open Page Rank 8+
3
20
Open Page Rank 7+
18
67
Open Page Rank 6+
28
144
Open Page Rank 5+
48
265
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
CartStack · OptiMonk · share of sites in each country using one or the other
United States
1,254
3,729
Brazil
3,313
480
Hungary
19
3,557
United Kingdom
168
1,562
India
163
1,300
Canada
253
1,109
Germany
71
1,171
Australia
115
949
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | CartStack | OptiMonk |
|---|---|---|
| LCP | 2 s | 1.8 s |
| INP | 100 ms | 100 ms |
| CLS | 0.05 | 0 |
| TTFB | 1000 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Jun 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.