Sentry vs Usabilla
Head-to-head usage across the sites we track.
Detections for Usabilla end in Aug 2021. 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
Sentry · Usabilla · 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
Sentry · Usabilla · share of sites in each country using one or the other
United States
323,523
309
United Kingdom
95,135
287
India
78,278
224
Canada
75,350
211
Brazil
73,076
160
Germany
70,758
269
France
65,757
263
Japan
51,705
148
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Sentry | Usabilla |
|---|---|---|
| LCP | 1.7 s | 2.1 s |
| INP | 75 ms | 150 ms |
| CLS | 0 | 0.05 |
| TTFB | 600 ms | 800 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.