Ace vs Monaco Editor
Head-to-head usage across the sites we track.
Top sites by authority
Ace · Monaco Editor · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
18
28
Open Page Rank 8+
197
297
Open Page Rank 7+
541
686
Open Page Rank 6+
833
997
Open Page Rank 5+
1,148
1,290
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Ace · Monaco Editor · share of sites in each country using one or the other
United States
4,508
3,440
India
2,769
2,975
United Kingdom
2,105
2,258
Germany
1,690
2,525
France
1,568
2,200
Canada
1,858
1,767
Brazil
1,531
1,883
Italy
1,326
1,785
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Ace | Monaco Editor |
|---|---|---|
| LCP | 2.1 s | 1.8 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 700 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Ace to Monaco Editor
| Domain | When |
|---|---|
| encode64.com | Jan 2026 |
Monaco Editor to Ace
| Domain | When |
|---|---|
| interviewninja.app | Aug 2025 |