Java Servlet vs Ruby on Rails
Head-to-head usage across the sites we track.
Top sites by authority
Java Servlet · Ruby on Rails · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Java Servlet · Ruby on Rails · share of sites in each country using one or the other
United States
2,160
83,667
United Kingdom
1,168
33,120
India
1,315
32,385
Canada
1,140
29,524
France
1,141
26,676
Germany
1,188
26,112
Japan
873
22,820
Spain
1,190
20,851
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Java Servlet | Ruby on Rails |
|---|---|---|
| LCP | 1.7 s | 1.7 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 700 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Ruby on Rails to Java Servlet
| Domain | When |
|---|---|
| nahahotels.net | Nov 2025 |