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
51
Open Page Rank 8+
3
1,265
Open Page Rank 7+
3
4,989
Open Page Rank 6+
3
9,515
Open Page Rank 5+
3
15,907
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
18
118,668
India
13
59,691
United Kingdom
12
43,146
Italy
14
41,478
Brazil
12
35,359
Canada
13
31,851
Germany
10
31,833
Türkiye
11
31,348
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, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.