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+
23
0
Open Page Rank 8+
287
17
Open Page Rank 7+
874
36
Open Page Rank 6+
1,655
53
Open Page Rank 5+
2,977
64
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
53,034
218
India
39,679
185
Spain
21,219
152
Germany
17,293
185
Brazil
16,961
149
France
16,546
145
United Kingdom
16,069
123
Indonesia
14,339
215
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Astra | ThemeGrill Flash |
|---|---|---|
| LCP | 2.5 s | 2.2 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 1400 ms | 1300 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.
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 |