Optimizely vs VisiOpt
Head-to-head usage across the sites we track.
Top sites by authority
Optimizely · VisiOpt · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
31
0
Open Page Rank 8+
400
0
Open Page Rank 7+
1,147
0
Open Page Rank 6+
1,808
0
Open Page Rank 5+
2,607
0
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Optimizely · VisiOpt · share of sites in each country using one or the other
United States
28,637
22
Canada
7,019
5
India
5,573
1
United Kingdom
5,243
3
Australia
4,573
4
France
4,064
0
Germany
3,936
0
Spain
3,659
0
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Optimizely | VisiOpt |
|---|---|---|
| LCP | 2 s | 3 s |
| INP | 100 ms | 100 ms |
| CLS | 0.05 | 0 |
| 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.