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+
8
13
Open Page Rank 7+
49
21
Open Page Rank 6+
99
41
Open Page Rank 5+
171
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
299
4,292
France
293
4,055
United States
429
3,108
Spain
264
3,242
Italy
253
2,801
United Kingdom
355
2,090
Belgium
190
2,144
Netherlands
265
1,643
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Constructor.io | Doofinder |
|---|---|---|
| LCP | 2.2 s | 1.9 s |
| INP | 175 ms | 100 ms |
| CLS | 0.05 | 0 |
| TTFB | 800 ms | 900 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.