GitBook vs Sphinx
Head-to-head usage across the sites we track.
Top sites by authority
GitBook · Sphinx · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
4
7
Open Page Rank 8+
52
41
Open Page Rank 7+
176
80
Open Page Rank 6+
310
113
Open Page Rank 5+
502
152
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
GitBook · Sphinx · share of sites in each country using one or the other
United States
2,554
508
India
2,119
448
Indonesia
1,436
260
Germany
1,244
299
Brazil
1,274
260
United Kingdom
1,233
298
France
1,132
293
Japan
1,012
268
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | GitBook | Sphinx |
|---|---|---|
| LCP | 2.2 s | 1.5 s |
| INP | 100 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 600 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.