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
1,955
78,208
United Kingdom
1,054
31,164
India
1,166
29,980
Canada
997
27,669
Germany
1,014
23,967
France
987
23,963
Spain
1,047
20,107
Japan
771
20,165
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, 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.
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 |