Astro vs Saber
Head-to-head usage across the sites we track.
Top sites by authority
Astro · Saber · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
34
0
Open Page Rank 8+
279
0
Open Page Rank 7+
797
0
Open Page Rank 6+
1,327
0
Open Page Rank 5+
2,043
0
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Astro · Saber · share of sites in each country using one or the other
United States
12,979
5
India
9,036
4
Brazil
6,685
2
France
5,788
4
Germany
5,447
3
United Kingdom
5,281
3
Spain
5,226
2
Japan
4,588
4
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Astro | Saber |
|---|---|---|
| LCP | 1.6 s | 4.7 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0.08 |
| TTFB | 600 ms | 1050 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.