H2O vs Nginx
Head-to-head usage across the sites we track.
Top sites by authority
H2O · Nginx · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
168
Open Page Rank 8+
0
3,579
Open Page Rank 7+
0
16,914
Open Page Rank 6+
2
35,190
Open Page Rank 5+
3
66,018
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
H2O · Nginx · share of sites in each country using one or the other
United States
7
693,335
Japan
33
536,543
Russia
1
334,605
Germany
12
326,474
India
7
258,307
United Kingdom
5
242,230
Italy
4
220,742
Spain
3
208,101
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | H2O | Nginx |
|---|---|---|
| LCP | 1.4 s | 1.8 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 800 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Nginx to H2O
| Domain | When |
|---|---|
| cartagena-hotels.org | Dec 2025 |
| hotels-salzburg.org | Sep 2025 |
| bestathenshotel.com | Sep 2025 |
| cartagena-hotels-colombia.com | Sep 2025 |
| losangeles-besthotels.com | Sep 2025 |