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+
28
0
Open Page Rank 8+
338
0
Open Page Rank 7+
1,170
3
Open Page Rank 6+
2,165
3
Open Page Rank 5+
3,608
4
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
26,545
12
India
24,253
13
Japan
17,342
9
Indonesia
13,943
11
Brazil
12,320
9
Türkiye
11,109
7
United Kingdom
10,516
13
Germany
9,935
12
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Firebase | Virtuoso |
|---|---|---|
| LCP | 2.3 s | 2.4 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 1000 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.