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+
29
4
Open Page Rank 8+
335
52
Open Page Rank 7+
1,159
117
Open Page Rank 6+
2,134
155
Open Page Rank 5+
3,550
217
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
26,814
1,109
India
24,552
604
Japan
17,162
282
Türkiye
11,210
5,281
Indonesia
13,449
383
Brazil
12,484
455
United Kingdom
10,730
569
Germany
9,842
648
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 | 900 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Firebase to MongoDB
| Domain | When |
|---|---|
| globay.com.tr | Aug 2026 |
MongoDB to Firebase
| Domain | When |
|---|---|
| bandi.com.tr | May 2026 |
| takisila.com | May 2026 |
| sarteyshop.com | Nov 2025 |