Ace vs Editor.js
Head-to-head usage across the sites we track.
Top sites by authority
Ace · Editor.js · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
17
0
Open Page Rank 8+
184
1
Open Page Rank 7+
521
4
Open Page Rank 6+
813
6
Open Page Rank 5+
1,124
9
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Ace · Editor.js · share of sites in each country using one or the other
United States
4,011
36
India
2,462
25
United Kingdom
1,832
19
Canada
1,613
16
Germany
1,448
31
Brazil
1,365
15
France
1,319
14
Spain
1,213
14
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Ace | Editor.js |
|---|---|---|
| LCP | 2 s | 1.4 s |
| INP | 75 ms | 125 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 400 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.