Skio vs Vitals
Head-to-head usage across the sites we track.
Top sites by authority
Skio · Vitals · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
1
Open Page Rank 8+
2
4
Open Page Rank 7+
2
8
Open Page Rank 6+
8
12
Open Page Rank 5+
30
33
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Skio · Vitals · share of sites in each country using one or the other
United States
583
3,310
United Kingdom
258
1,382
India
192
1,273
Canada
233
993
Australia
136
956
Germany
69
992
France
65
905
Spain
55
670
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Skio | Vitals |
|---|---|---|
| LCP | 1.9 s | 1.6 s |
| INP | 125 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 500 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.