Glassbox vs Google Analytics
Head-to-head usage across the sites we track.
Top sites by authority
Glassbox · Google Analytics · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
241
Open Page Rank 8+
4
5,396
Open Page Rank 7+
17
30,173
Open Page Rank 6+
38
69,722
Open Page Rank 5+
60
139,726
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Glassbox · Google Analytics · share of sites in each country using one or the other
United States
257
1,825,086
Japan
106
752,077
India
174
660,191
United Kingdom
199
591,165
Brazil
93
487,743
France
134
487,677
Germany
147
438,882
Canada
162
427,096
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Glassbox | Google Analytics |
|---|---|---|
| LCP | 2 s | 1.9 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 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.