FUDforum vs vBulletin
Head-to-head usage across the sites we track.
Top sites by authority
FUDforum · vBulletin · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
0
Open Page Rank 8+
1
7
Open Page Rank 7+
1
37
Open Page Rank 6+
1
70
Open Page Rank 5+
3
131
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
FUDforum · vBulletin · share of sites in each country using one or the other
United States
11
1,547
Germany
5
1,011
United Kingdom
3
933
Canada
4
782
France
6
658
Russia
6
613
Netherlands
3
609
Italy
3
571
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | FUDforum | vBulletin |
|---|---|---|
| LCP | 1.4 s | 1.4 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 750 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.