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+
29
3
Open Page Rank 8+
335
46
Open Page Rank 7+
1,159
125
Open Page Rank 6+
2,134
186
Open Page Rank 5+
3,550
257
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
26,814
310
India
24,552
195
Japan
17,162
138
Indonesia
13,449
319
Brazil
12,484
208
Türkiye
11,210
99
United Kingdom
10,730
184
Germany
9,842
187
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Firebase | Lucene |
|---|---|---|
| LCP | 2.3 s | 1.6 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 700 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.