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
239
Open Page Rank 8+
4
5,360
Open Page Rank 7+
17
29,967
Open Page Rank 6+
38
69,110
Open Page Rank 5+
60
138,386
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
241
1,630,450
Japan
94
653,829
India
153
590,092
United Kingdom
174
519,612
Brazil
80
448,348
France
118
410,196
Germany
127
390,976
Canada
145
372,528
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Glassbox | Google Analytics |
|---|---|---|
| LCP | 1.9 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, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.