Sphinx vs Zendesk
Head-to-head usage across the sites we track.
Top sites by authority
Sphinx · Zendesk · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
5
89
Open Page Rank 8+
32
1,075
Open Page Rank 7+
72
3,759
Open Page Rank 6+
99
6,998
Open Page Rank 5+
140
11,620
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Sphinx · Zendesk · share of sites in each country using one or the other
United States
430
47,399
United Kingdom
233
25,088
India
391
22,237
Canada
209
21,429
Germany
247
20,616
France
225
18,921
Spain
183
16,321
Australia
178
15,693
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Sphinx | Zendesk |
|---|---|---|
| LCP | 1.6 s | 1.9 s |
| INP | 50 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 700 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.