Astra vs ThemeGrill Flash
Head-to-head usage across the sites we track.
Top sites by authority
Astra · ThemeGrill Flash · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
21
0
Open Page Rank 8+
298
16
Open Page Rank 7+
889
35
Open Page Rank 6+
1,677
52
Open Page Rank 5+
3,030
65
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Astra · ThemeGrill Flash · share of sites in each country using one or the other
United States
54,700
217
India
40,848
189
Spain
19,785
136
Brazil
17,822
149
Germany
17,658
190
France
16,604
148
United Kingdom
16,239
116
Indonesia
14,649
207
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Astra | ThemeGrill Flash |
|---|---|---|
| LCP | 2.4 s | 2.2 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 1300 ms | 1300 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
ThemeGrill Flash to Astra
| Domain | When |
|---|---|
| tapasbar-malaga.de | May 2026 |
| viihdeohjelmat.fi | Apr 2026 |