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+
43
0
Open Page Rank 8+
654
9
Open Page Rank 7+
2,730
19
Open Page Rank 6+
5,140
23
Open Page Rank 5+
8,455
27
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
53,163
110
United Kingdom
24,886
93
Canada
24,461
93
India
18,232
67
Germany
17,552
85
France
16,584
98
Australia
15,760
55
Spain
15,151
89
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, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.