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+
7
89
Open Page Rank 8+
33
1,073
Open Page Rank 7+
68
3,743
Open Page Rank 6+
92
6,936
Open Page Rank 5+
124
11,485
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
423
47,191
United Kingdom
232
25,006
India
378
21,873
Canada
227
21,391
Germany
242
20,364
France
235
18,868
Spain
202
16,862
Italy
204
15,861
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, 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.