SunOS vs Windows Server
Head-to-head usage across the sites we track.
Top sites by authority
SunOS · Windows Server · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
61
Open Page Rank 8+
0
1,333
Open Page Rank 7+
0
5,327
Open Page Rank 6+
0
10,164
Open Page Rank 5+
0
17,038
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
SunOS · Windows Server · share of sites in each country using one or the other
United States
1
137,903
India
1
69,310
United Kingdom
0
49,506
Italy
0
47,568
Brazil
0
39,706
Germany
0
36,929
Türkiye
0
36,852
Canada
1
36,570
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | SunOS | Windows Server |
|---|---|---|
| LCP | 1.9 s | 1.7 s |
| INP | 125 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 1000 ms | 700 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.