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+
39
117
Open Page Rank 5+
76
500
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
25
180,950
United Kingdom
4,927
142
United States
370
801
Taiwan
14
838
Indonesia
65
588
South Korea
15
482
India
241
250
Thailand
23
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 | 500 ms | 700 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.