Ruby on Rails vs ZK
Head-to-head usage across the sites we track.
Top sites by authority
Ruby on Rails · ZK · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
94
0
Open Page Rank 8+
1,449
8
Open Page Rank 7+
4,617
27
Open Page Rank 6+
7,815
47
Open Page Rank 5+
11,919
66
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Ruby on Rails · ZK · share of sites in each country using one or the other
United States
83,667
161
United Kingdom
33,120
88
India
32,385
86
Canada
29,524
82
France
26,676
86
Germany
26,112
107
Japan
22,820
42
Spain
20,851
92
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Ruby on Rails | ZK |
|---|---|---|
| LCP | 1.7 s | 2 s |
| INP | 75 ms | 75 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.