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+
3
46
Open Page Rank 8+
11
943
Open Page Rank 7+
20
3,518
Open Page Rank 6+
22
6,705
Open Page Rank 5+
26
11,700
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
118
83,071
India
118
62,522
Germany
102
41,491
Brazil
76
35,577
Russia
47
35,160
United Kingdom
94
33,985
France
95
31,974
Italy
98
29,206
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 | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 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.