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+
124
0
Open Page Rank 7+
382
0
Open Page Rank 6+
669
3
Open Page Rank 5+
1,050
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
19,946
54
India
11,864
39
United Kingdom
10,716
47
Canada
9,934
41
Germany
8,787
35
Brazil
7,959
25
France
7,673
33
Netherlands
7,412
33
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Google Optimize | Qubit |
|---|---|---|
| LCP | 2.1 s | 2.1 s |
| INP | 100 ms | 175 ms |
| CLS | 0 | 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.