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+
4
19
Open Page Rank 7+
18
64
Open Page Rank 6+
28
136
Open Page Rank 5+
45
252
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
1,101
3,239
Brazil
2,864
428
Hungary
16
3,202
United Kingdom
140
1,369
India
146
1,116
Canada
223
931
Germany
66
966
Australia
95
766
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 | 0 |
| TTFB | 900 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.