AppNexus vs MainAd
Head-to-head usage across the sites we track.
Top sites by authority
AppNexus · MainAd · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
43
1
Open Page Rank 8+
646
6
Open Page Rank 7+
2,645
21
Open Page Rank 6+
4,923
30
Open Page Rank 5+
7,930
63
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
AppNexus · MainAd · share of sites in each country using one or the other
United States
53,163
266
United Kingdom
24,886
287
Canada
24,461
161
India
18,232
175
Germany
17,552
218
France
16,584
216
Australia
15,760
133
Spain
15,151
224
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | AppNexus | MainAd |
|---|---|---|
| LCP | 1.9 s | 1.9 s |
| INP | 100 ms | 150 ms |
| CLS | 0.05 | 0 |
| TTFB | 800 ms | 700 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
MainAd to AppNexus
| Domain | When |
|---|---|
| opodo.co.uk | Jun 2026 |