AppNexus vs Fusion Ads
Head-to-head usage across the sites we track.
Top sites by authority
AppNexus · Fusion Ads · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
41
0
Open Page Rank 8+
670
0
Open Page Rank 7+
2,747
0
Open Page Rank 6+
5,157
0
Open Page Rank 5+
8,426
1
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
AppNexus · Fusion Ads · share of sites in each country using one or the other
United States
55,306
4
United Kingdom
25,318
4
Canada
24,555
1
India
18,466
2
Germany
18,026
0
France
17,057
0
Australia
16,016
1
Spain
15,020
0
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | AppNexus | Fusion Ads |
|---|---|---|
| LCP | 1.9 s | 1.9 s |
| INP | 100 ms | 50 ms |
| CLS | 0.05 | 0 |
| TTFB | 800 ms | 900 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.