Google Optimize vs Qubit
Head-to-head usage across the sites we track.
Top sites by authority
Google Optimize · Qubit · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
18
0
Open Page Rank 8+
130
0
Open Page Rank 7+
409
0
Open Page Rank 6+
723
2
Open Page Rank 5+
1,146
3
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Google Optimize · Qubit · share of sites in each country using one or the other
United States
22,776
65
India
13,736
46
United Kingdom
12,439
54
Canada
11,536
56
Germany
10,140
41
France
9,450
43
Brazil
8,989
27
Netherlands
8,660
45
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Google Optimize | Qubit |
|---|---|---|
| LCP | 2.1 s | 2.3 s |
| INP | 100 ms | 175 ms |
| CLS | 0 | 0.05 |
| TTFB | 800 ms | 900 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.