UKFast vs Xserver
Head-to-head usage across the sites we track.
Top sites by authority
UKFast · Xserver · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
0
Open Page Rank 8+
2
11
Open Page Rank 7+
11
28
Open Page Rank 6+
37
117
Open Page Rank 5+
70
499
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
UKFast · Xserver · share of sites in each country using one or the other
Japan
28
158,717
United Kingdom
3,562
125
United States
323
753
Taiwan
13
751
Indonesia
55
480
South Korea
17
480
India
202
253
Thailand
19
306
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | UKFast | Xserver |
|---|---|---|
| LCP | 1.4 s | 1.6 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 600 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.