Optimizely CMS vs WordPress
Head-to-head usage across the sites we track.
Detections for Optimizely CMS end in Dec 2022. The fingerprint catalog behind our crawls no longer carries that technology as its own entry, usually because it was retired or split into more specific ones, so its figure is the last recorded and is not directly comparable with a currently tracked technology.
Top sites by authority
Optimizely CMS · WordPress · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Optimizely CMS · WordPress · share of sites in each country using one or the other
United States
3
864,113
Japan
1
419,559
Germany
3
328,131
India
3
323,150
United Kingdom
2
289,315
Italy
2
271,822
France
3
264,782
Brazil
0
251,945
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Optimizely CMS | WordPress |
|---|---|---|
| LCP | 1.2 s | 2.1 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 450 ms | 1100 ms |
Median site's p75 values from the Chrome UX Report, Oct 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.