BugHerd vs Vigil
Head-to-head usage across the sites we track.
Top sites by authority
BugHerd · Vigil · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
18
0
Open Page Rank 8+
115
1
Open Page Rank 7+
299
1
Open Page Rank 6+
522
1
Open Page Rank 5+
806
1
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
BugHerd · Vigil · share of sites in each country using one or the other
United States
5,126
2
Canada
1,760
2
United Kingdom
1,718
1
India
1,611
3
Australia
1,487
2
France
934
2
Germany
879
1
Philippines
752
1
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | BugHerd | Vigil |
|---|---|---|
| LCP | 1.8 s | 3.2 s |
| INP | 75 ms | 150 ms |
| CLS | 0 | 0.03 |
| TTFB | 800 ms | 850 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.