Rosti vs Xserver
Head-to-head usage across the sites we track.
Top sites by authority
Rosti · Xserver · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 8+
0
11
Open Page Rank 7+
0
28
Open Page Rank 6+
0
117
Open Page Rank 5+
0
499
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Rosti · Xserver · share of sites in each country using one or the other
Japan
0
158,717
United States
3
753
Taiwan
0
751
Indonesia
2
480
South Korea
1
480
Thailand
0
306
India
3
253
Hong Kong SAR China
0
255
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Rosti | Xserver |
|---|---|---|
| LCP | 1.2 s | 1.6 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 400 ms | 700 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.