Flarum vs phpBB
Head-to-head usage across the sites we track.
Top sites by authority
Flarum · phpBB · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
3
Open Page Rank 8+
6
31
Open Page Rank 7+
18
102
Open Page Rank 6+
30
167
Open Page Rank 5+
54
271
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Flarum · phpBB · share of sites in each country using one or the other
United States
321
1,695
Germany
186
1,698
France
156
1,342
United Kingdom
179
1,183
Poland
102
1,120
Russia
121
1,070
Spain
123
883
Italy
124
870
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Flarum | phpBB |
|---|---|---|
| LCP | 2 s | 1.1 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 500 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.