Constructor.io vs Doofinder
Head-to-head usage across the sites we track.
Top sites by authority
Constructor.io · Doofinder · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
3
Open Page Rank 8+
9
14
Open Page Rank 7+
54
22
Open Page Rank 6+
110
43
Open Page Rank 5+
184
122
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Constructor.io · Doofinder · share of sites in each country using one or the other
Germany
293
3,946
France
284
3,575
Spain
255
2,949
United States
423
2,680
Italy
241
2,531
United Kingdom
351
1,954
Belgium
190
1,930
Netherlands
251
1,532
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Constructor.io | Doofinder |
|---|---|---|
| LCP | 2.1 s | 1.8 s |
| INP | 200 ms | 100 ms |
| CLS | 0.05 | 0 |
| TTFB | 800 ms | 900 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.