Flarum vs vBulletin
Head-to-head usage across the sites we track.
Top sites by authority
Flarum · vBulletin · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 8+
7
7
Open Page Rank 7+
19
37
Open Page Rank 6+
32
70
Open Page Rank 5+
57
131
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Flarum · vBulletin · share of sites in each country using one or the other
United States
350
1,547
Germany
218
1,011
United Kingdom
185
933
Canada
151
782
France
188
658
India
214
549
Netherlands
139
609
Russia
130
613
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Flarum | vBulletin |
|---|---|---|
| LCP | 2 s | 1.4 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 700 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.