Carbon Ads vs Google Publisher Tag
Head-to-head usage across the sites we track.
Top sites by authority
Carbon Ads · Google Publisher Tag · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Carbon Ads · Google Publisher Tag · share of sites in each country using one or the other
United States
262
69,673
United Kingdom
146
36,190
Canada
126
35,821
India
263
28,780
Germany
131
27,542
France
123
24,581
Australia
98
24,114
Spain
103
23,313
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Carbon Ads | Google Publisher Tag |
|---|---|---|
| LCP | 1.6 s | 1.9 s |
| INP | 50 ms | 100 ms |
| CLS | 0 | 0.05 |
| 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Carbon Ads to Google Publisher Tag
| Domain | When |
|---|---|
| tomatotimers.com | Jun 2026 |