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
316,827
315
United Kingdom
94,693
287
India
77,149
232
Canada
74,305
217
Brazil
72,498
156
Germany
69,458
273
France
66,242
260
Japan
51,207
145
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 | 700 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.