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+
30
6
Open Page Rank 8+
332
49
Open Page Rank 7+
1,143
108
Open Page Rank 6+
2,126
151
Open Page Rank 5+
3,574
220
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
28,687
1,247
India
26,286
669
Japan
19,756
313
Türkiye
12,673
5,571
Indonesia
15,171
500
Brazil
13,242
493
United Kingdom
11,683
626
Germany
10,895
738
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Firebase | MongoDB |
|---|---|---|
| LCP | 2.3 s | 3.2 s |
| INP | 100 ms | 200 ms |
| CLS | 0 | 0.05 |
| 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.
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 |
| sarteyshop.com | Nov 2025 |