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
237
Open Page Rank 8+
3
5,340
Open Page Rank 7+
15
29,676
Open Page Rank 6+
36
68,289
Open Page Rank 5+
59
136,473
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
238
1,603,337
Japan
94
649,985
India
153
585,808
United Kingdom
172
519,934
Brazil
82
441,421
France
115
412,957
Germany
126
381,385
Canada
144
371,221
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 | 125 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 800 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.