Scientific Linux vs Ubuntu
Head-to-head usage across the sites we track.
Top sites by authority
Scientific Linux · Ubuntu · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
45
Open Page Rank 8+
9
880
Open Page Rank 7+
17
3,277
Open Page Rank 6+
19
6,237
Open Page Rank 5+
23
10,868
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Scientific Linux · Ubuntu · share of sites in each country using one or the other
United States
111
71,685
India
98
57,063
Germany
87
34,846
Russia
44
33,629
Brazil
67
32,677
United Kingdom
89
29,881
France
83
26,849
Italy
86
25,439
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Scientific Linux | Ubuntu |
|---|---|---|
| LCP | 1.3 s | 1.9 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 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.