Firebase vs Lucene
Head-to-head usage across the sites we track.
Top sites by authority
Firebase · Lucene · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
30
4
Open Page Rank 8+
332
48
Open Page Rank 7+
1,143
135
Open Page Rank 6+
2,126
198
Open Page Rank 5+
3,574
255
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Firebase · Lucene · share of sites in each country using one or the other
United States
28,687
332
India
26,286
198
Japan
19,756
142
Indonesia
15,171
360
Brazil
13,242
223
Türkiye
12,673
105
United Kingdom
11,683
206
Germany
10,895
217
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Firebase | Lucene |
|---|---|---|
| LCP | 2.3 s | 1.5 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 600 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.