LOU vs Userflow
Head-to-head usage across the sites we track.
Top sites by authority
LOU · Userflow · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 8+
0
8
Open Page Rank 7+
0
33
Open Page Rank 6+
0
62
Open Page Rank 5+
0
97
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
LOU · Userflow · share of sites in each country using one or the other
United States
10
549
India
9
246
United Kingdom
6
216
Canada
3
186
Germany
5
147
France
6
130
Australia
1
129
Spain
2
127
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | LOU | Userflow |
|---|---|---|
| LCP | 2.5 s | 2.2 s |
| INP | 100 ms | 75 ms |
| CLS | 0.05 | 0 |
| TTFB | 1200 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.