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+
56
22
Open Page Rank 6+
114
42
Open Page Rank 5+
181
120
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
292
3,905
France
278
3,520
Spain
264
2,957
United States
445
2,639
Italy
258
2,598
United Kingdom
349
1,890
Belgium
184
1,919
Netherlands
259
1,519
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, 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.