ExtJS vs React
Head-to-head usage across the sites we track.
Top sites by authority
ExtJS · React · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
5
223
Open Page Rank 8+
85
3,861
Open Page Rank 7+
267
15,766
Open Page Rank 6+
433
30,165
Open Page Rank 5+
613
51,195
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
ExtJS · React · share of sites in each country using one or the other
United States
2,365
595,277
India
1,161
243,719
United Kingdom
1,181
194,085
Brazil
1,101
164,323
Germany
1,462
162,915
Canada
961
148,255
France
1,124
143,971
Spain
980
106,955
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | ExtJS | React |
|---|---|---|
| LCP | 1.8 s | 1.9 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 700 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
ExtJS to React
| Domain | When |
|---|---|
| infantchart.com | May 2026 |
| orbitxch.com | Feb 2026 |
| orbitexch.com | Feb 2026 |
React to ExtJS
| Domain | When |
|---|---|
| lsionline.com | May 2026 |