Sentry vs Vigil
Head-to-head usage across the sites we track.
Top sites by authority
Sentry · Vigil · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
139
0
Open Page Rank 8+
2,047
1
Open Page Rank 7+
7,280
1
Open Page Rank 6+
13,311
1
Open Page Rank 5+
21,772
1
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Sentry · Vigil · share of sites in each country using one or the other
United States
316,827
1
United Kingdom
94,693
1
India
77,149
1
Canada
74,305
1
Brazil
72,498
1
Germany
69,458
1
France
66,242
1
Japan
51,207
1
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Sentry | Vigil |
|---|---|---|
| LCP | 1.7 s | 4 s |
| INP | 75 ms | 250 ms |
| CLS | 0 | 0 |
| TTFB | 600 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.