Karte vs Optimizely
Head-to-head usage across the sites we track.
Top sites by authority
Karte · Optimizely · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
2
31
Open Page Rank 8+
36
400
Open Page Rank 7+
106
1,147
Open Page Rank 6+
183
1,808
Open Page Rank 5+
259
2,607
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Karte · Optimizely · share of sites in each country using one or the other
United States
208
28,637
Canada
99
7,019
India
117
5,573
United Kingdom
92
5,243
Australia
93
4,573
France
93
4,064
Japan
869
3,261
Germany
85
3,936
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Karte | Optimizely |
|---|---|---|
| LCP | 1.7 s | 2 s |
| INP | 100 ms | 100 ms |
| CLS | 0 | 0.05 |
| TTFB | 600 ms | 800 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.