Elm vs Python
Head-to-head usage across the sites we track.
Top sites by authority
Elm · Python · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
4
63
Open Page Rank 8+
5
810
Open Page Rank 7+
11
2,228
Open Page Rank 6+
16
3,569
Open Page Rank 5+
17
5,214
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Elm · Python · share of sites in each country using one or the other
United States
53
24,352
India
31
22,541
Indonesia
21
17,283
Germany
40
14,576
France
68
12,205
Brazil
21
11,966
Spain
34
11,442
United Kingdom
47
10,983
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Elm | Python |
|---|---|---|
| LCP | 1.9 s | 2.1 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 1000 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.