Firebase vs Virtuoso
Head-to-head usage across the sites we track.
Top sites by authority
Firebase · Virtuoso · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
30
0
Open Page Rank 8+
332
0
Open Page Rank 7+
1,143
4
Open Page Rank 6+
2,126
5
Open Page Rank 5+
3,574
6
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Firebase · Virtuoso · share of sites in each country using one or the other
United States
28,687
13
India
26,286
15
Japan
19,756
12
Indonesia
15,171
12
Brazil
13,242
12
Türkiye
12,673
7
United Kingdom
11,683
12
Germany
10,895
15
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Firebase | Virtuoso |
|---|---|---|
| LCP | 2.3 s | 2.2 s |
| INP | 100 ms | 87 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 950 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.