Instatus vs Sentry
Head-to-head usage across the sites we track.
Top sites by authority
Instatus · Sentry · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
5
139
Open Page Rank 8+
14
2,047
Open Page Rank 7+
38
7,280
Open Page Rank 6+
64
13,311
Open Page Rank 5+
98
21,772
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Instatus · Sentry · share of sites in each country using one or the other
United States
317
316,827
United Kingdom
202
94,693
India
241
77,149
Canada
172
74,305
Brazil
178
72,498
Germany
174
69,458
France
162
66,242
Japan
113
51,207
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Instatus | Sentry |
|---|---|---|
| LCP | 2 s | 1.7 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 600 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Instatus to Sentry
| Domain | When |
|---|---|
| watermelon.ai | Jan 2026 |
Sentry to Instatus
| Domain | When |
|---|---|
| yaroflasher.com | Jun 2026 |