LOU vs Userflow
Head-to-head usage across the sites we track.
Detections for LOU end in Apr 2025. The fingerprint catalog behind our crawls no longer carries that technology as its own entry, usually because it was retired or split into more specific ones, so its figure is the last recorded and is not directly comparable with a currently tracked technology.
Top sites by authority
LOU · Userflow · how many of each technology's sites sit in the web's highest authority tiers
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
11
510
India
7
244
United Kingdom
5
171
Canada
3
164
Germany
4
129
Brazil
4
112
Spain
2
108
Australia
2
106
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | LOU | Userflow |
|---|---|---|
| LCP | 2.7 s | 2.2 s |
| INP | 100 ms | 75 ms |
| CLS | 0.05 | 0 |
| TTFB | 1150 ms | 700 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.