FluxBB vs IPB
Head-to-head usage across the sites we track.
Top sites by authority
FluxBB · IPB · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
2
Open Page Rank 8+
1
23
Open Page Rank 7+
3
69
Open Page Rank 6+
5
130
Open Page Rank 5+
6
201
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
FluxBB · IPB · share of sites in each country using one or the other
United States
21
1,604
United Kingdom
14
1,081
Germany
14
1,006
Russia
10
965
Canada
12
820
France
22
773
Poland
10
760
India
10
725
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | FluxBB | IPB |
|---|---|---|
| LCP | 1.2 s | 1.5 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 500 ms | 800 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.