Elm vs Ruby
Head-to-head usage across the sites we track.
Top sites by authority
Elm · Ruby · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
4
93
Open Page Rank 8+
5
1,473
Open Page Rank 7+
10
4,626
Open Page Rank 6+
14
7,835
Open Page Rank 5+
15
12,013
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Elm · Ruby · share of sites in each country using one or the other
United States
46
81,172
United Kingdom
42
31,238
India
32
31,163
Canada
22
27,720
Germany
35
24,578
France
60
24,019
Japan
23
20,441
Brazil
20
19,689
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Elm | Ruby |
|---|---|---|
| LCP | 1.9 s | 1.7 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 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.