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+
21
0
Open Page Rank 8+
194
6
Open Page Rank 7+
551
30
Open Page Rank 6+
864
58
Open Page Rank 5+
1,198
111
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
3,528
1,348
India
2,634
477
United Kingdom
2,232
802
Germany
2,079
838
Canada
1,983
668
France
1,794
519
Brazil
1,806
395
Australia
1,591
461
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, 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.