CodeMirror vs Webdev
Head-to-head usage across the sites we track.
Detections for Webdev end in Jan 2021. The fingerprint catalog behind our crawls no longer carries that technology as its own entry, usually because it was retired or split into more specific ones, so its figure is the last recorded and is not directly comparable with a currently tracked technology.
Top sites by authority
CodeMirror · Webdev · 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
CodeMirror · Webdev · share of sites in each country using one or the other
United States
11,605
3
India
2,977
2
United Kingdom
2,501
6
Canada
2,325
3
Germany
1,980
6
Brazil
1,954
4
France
1,686
23
Spain
1,646
7
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | CodeMirror | Webdev |
|---|---|---|
| LCP | 2.1 s | 2.3 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 800 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.