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+
47
0
Open Page Rank 8+
689
9
Open Page Rank 7+
2,812
21
Open Page Rank 6+
5,269
26
Open Page Rank 5+
8,688
30
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
63,153
129
United Kingdom
28,394
110
Canada
28,277
108
India
21,189
85
France
20,122
114
Germany
20,086
96
Australia
18,205
62
Spain
17,003
97
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 | 600 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.