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+
189
6
Open Page Rank 7+
541
31
Open Page Rank 6+
849
55
Open Page Rank 5+
1,179
105
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
3,525
1,336
India
2,610
476
United Kingdom
2,247
781
Germany
2,055
801
Canada
1,986
640
France
1,850
499
Brazil
1,772
379
Spain
1,656
480
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Discourse | vBulletin |
|---|---|---|
| LCP | 1.7 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, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.