CentOS vs SunOS
Head-to-head usage across the sites we track.
Detections for SunOS end in Nov 2025. 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
CentOS · SunOS · 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
CentOS · SunOS · share of sites in each country using one or the other
Japan
13,559
0
United States
12,731
1
India
7,525
1
South Korea
6,436
0
Italy
5,915
0
United Kingdom
5,735
0
Germany
5,653
0
Brazil
5,371
0
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | CentOS | SunOS |
|---|---|---|
| LCP | 1.6 s | 3 s |
| INP | 75 ms | 225 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 1400 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.