Firebase vs MongoDB
Head-to-head usage across the sites we track.
Top sites by authority
Firebase · MongoDB · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
28
5
Open Page Rank 8+
338
49
Open Page Rank 7+
1,170
106
Open Page Rank 6+
2,165
147
Open Page Rank 5+
3,608
215
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Firebase · MongoDB · share of sites in each country using one or the other
United States
26,545
1,116
India
24,253
600
Japan
17,342
266
Türkiye
11,109
5,098
Indonesia
13,943
427
Brazil
12,320
452
United Kingdom
10,516
550
Germany
9,935
629
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Firebase | MongoDB |
|---|---|---|
| LCP | 2.3 s | 3.3 s |
| INP | 100 ms | 200 ms |
| CLS | 0 | 0.05 |
| TTFB | 700 ms | 800 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
MongoDB to Firebase
| Domain | When |
|---|---|
| bandi.com.tr | May 2026 |
| takisila.com | May 2026 |
| sarteyshop.com | Nov 2025 |