Google Optimize vs VisiOpt
Head-to-head usage across the sites we track.
Top sites by authority
Google Optimize · VisiOpt · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
15
0
Open Page Rank 8+
112
1
Open Page Rank 7+
356
1
Open Page Rank 6+
620
1
Open Page Rank 5+
982
1
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 · VisiOpt · share of sites in each country using one or the other
United States
19,616
23
India
11,660
4
United Kingdom
10,689
3
Canada
9,812
4
Germany
8,571
1
Brazil
7,844
0
France
7,579
1
Spain
7,482
0
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Google Optimize | VisiOpt |
|---|---|---|
| LCP | 2 s | 2.1 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 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.