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+
138
4
Open Page Rank 8+
2,041
27
Open Page Rank 7+
7,254
64
Open Page Rank 6+
13,210
97
Open Page Rank 5+
21,676
120
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
323,523
495
United Kingdom
95,135
282
India
78,278
335
Canada
75,350
224
Brazil
73,076
281
Germany
70,758
262
France
65,757
225
Japan
51,705
179
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Sentry | UptimeRobot |
|---|---|---|
| LCP | 1.7 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, 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.
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 |
|---|---|
| vknnimhans.in | Jul 2026 |
| nimhanselearning.org | Jun 2026 |
| opendc.org | May 2026 |
| snowfire.ai | Oct 2025 |