Darwin vs Windows Server
Head-to-head usage across the sites we track.
Top sites by authority
Darwin · Windows Server · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
61
Open Page Rank 8+
4
1,333
Open Page Rank 7+
4
5,327
Open Page Rank 6+
4
10,164
Open Page Rank 5+
4
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
Darwin · Windows Server · share of sites in each country using one or the other
United States
22
137,903
India
15
69,310
United Kingdom
12
49,506
Italy
19
47,568
Brazil
14
39,706
Germany
12
36,929
Türkiye
11
36,852
Canada
16
36,570
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Darwin | Windows Server |
|---|---|---|
| LCP | 1.2 s | 1.7 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 400 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.