Facebook Pixel vs Glassbox
Head-to-head usage across the sites we track.
Top sites by authority
Facebook Pixel · Glassbox · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
126
1
Open Page Rank 8+
2,809
4
Open Page Rank 7+
13,325
17
Open Page Rank 6+
28,373
38
Open Page Rank 5+
53,486
60
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Facebook Pixel · Glassbox · share of sites in each country using one or the other
United States
682,486
257
Brazil
232,798
93
India
232,577
174
United Kingdom
215,651
199
Canada
179,139
162
Germany
152,732
147
Australia
147,442
111
France
143,703
134
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Facebook Pixel | Glassbox |
|---|---|---|
| LCP | 1.9 s | 2 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 700 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.