Discourse vs vBulletin
Head-to-head usage across the sites we track.
Top sites by authority
Discourse · vBulletin · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
20
0
Open Page Rank 8+
191
7
Open Page Rank 7+
553
37
Open Page Rank 6+
875
70
Open Page Rank 5+
1,229
131
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Discourse · vBulletin · share of sites in each country using one or the other
United States
3,977
1,547
United Kingdom
2,549
933
India
2,917
549
Germany
2,399
1,011
Canada
2,233
782
France
2,205
658
Brazil
1,990
455
Spain
1,801
553
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Discourse | vBulletin |
|---|---|---|
| LCP | 1.8 s | 1.4 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 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.