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+
189
1
Open Page Rank 7+
532
4
Open Page Rank 6+
831
6
Open Page Rank 5+
1,149
10
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
3,994
34
India
2,485
25
United Kingdom
1,802
18
Canada
1,574
15
Germany
1,448
31
Brazil
1,363
16
France
1,278
13
Netherlands
1,144
13
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Ace | Editor.js |
|---|---|---|
| LCP | 2.1 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, 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.