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+
89
0
Open Page Rank 8+
1,427
8
Open Page Rank 7+
4,476
26
Open Page Rank 6+
7,577
45
Open Page Rank 5+
11,599
65
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
77,772
155
United Kingdom
30,362
84
India
29,983
77
Canada
26,938
69
Germany
23,823
97
France
23,442
69
Japan
19,999
45
Brazil
19,111
95
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Ruby on Rails | ZK |
|---|---|---|
| LCP | 1.7 s | 1.9 s |
| INP | 75 ms | 75 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.