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
25
Open Page Rank 7+
3
73
Open Page Rank 6+
5
139
Open Page Rank 5+
7
214
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
1,637
United Kingdom
13
1,122
Germany
13
1,052
Russia
10
967
Canada
14
861
France
23
797
Poland
11
792
India
11
726
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 | 25 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 500 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.