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
10
Open Page Rank 7+
9
27
Open Page Rank 6+
35
114
Open Page Rank 5+
65
493
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
27
157,477
United Kingdom
4,153
134
United States
325
789
Taiwan
12
761
South Korea
15
485
Indonesia
56
428
India
183
254
Thailand
21
291
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | UKFast | Xserver |
|---|---|---|
| LCP | 1.4 s | 1.5 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 500 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.