Astro vs Scully
Head-to-head usage across the sites we track.
Top sites by authority
Astro · Scully · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
41
1
Open Page Rank 8+
340
3
Open Page Rank 7+
990
8
Open Page Rank 6+
1,648
11
Open Page Rank 5+
2,556
15
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Astro · Scully · share of sites in each country using one or the other
United States
16,861
74
India
10,589
50
Brazil
7,861
31
France
6,765
32
Germany
6,682
70
United Kingdom
6,556
41
Spain
6,523
32
Japan
5,408
22
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Astro | Scully |
|---|---|---|
| LCP | 1.5 s | 2 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 600 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.