AppNexus vs Open AdStream
Head-to-head usage across the sites we track.
Top sites by authority
AppNexus · Open AdStream · 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
9
Open Page Rank 7+
2,747
20
Open Page Rank 6+
5,157
24
Open Page Rank 5+
8,426
28
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
AppNexus · Open AdStream · share of sites in each country using one or the other
United States
55,306
110
United Kingdom
25,318
97
Canada
24,555
92
India
18,466
68
Germany
18,026
83
France
17,057
98
Australia
16,016
58
Spain
15,020
87
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | AppNexus | Open AdStream |
|---|---|---|
| LCP | 1.9 s | 1.8 s |
| INP | 100 ms | 125 ms |
| CLS | 0.05 | 0 |
| TTFB | 800 ms | 700 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.