Sentry vs UptimeRobot
Head-to-head usage across the sites we track.
Top sites by authority
Sentry · UptimeRobot · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
136
5
Open Page Rank 8+
2,050
27
Open Page Rank 7+
7,315
63
Open Page Rank 6+
13,313
93
Open Page Rank 5+
21,753
116
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Sentry · UptimeRobot · share of sites in each country using one or the other
United States
359,106
543
United Kingdom
105,998
317
India
86,387
370
Canada
84,660
256
Germany
77,287
293
France
75,293
248
Brazil
74,887
305
Japan
58,513
209
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Sentry | UptimeRobot |
|---|---|---|
| LCP | 1.6 s | 1.9 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 800 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Sentry to UptimeRobot
| Domain | When |
|---|---|
| opendc.org | May 2026 |
| snowfire.ai | Oct 2025 |