Simple Machines Forum vs vBulletin
Head-to-head usage across the sites we track.
Top sites by authority
Simple Machines Forum · 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+
29
37
Open Page Rank 6+
44
70
Open Page Rank 5+
77
131
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Simple Machines Forum · vBulletin · share of sites in each country using one or the other
United States
636
1,547
Germany
420
1,011
United Kingdom
343
933
Canada
216
782
Russia
309
613
France
258
658
Netherlands
224
609
Spain
248
553
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Simple Machines Forum | vBulletin |
|---|---|---|
| LCP | 1.2 s | 1.4 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 500 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.