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+
47
2
Open Page Rank 8+
689
7
Open Page Rank 7+
2,812
30
Open Page Rank 6+
5,269
44
Open Page Rank 5+
8,688
85
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
63,153
334
United Kingdom
28,394
360
Canada
28,277
210
India
21,189
226
France
20,122
289
Germany
20,086
290
Australia
18,205
165
Spain
17,003
278
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | AppNexus | MainAd |
|---|---|---|
| LCP | 1.9 s | 2 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, 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
AppNexus to MainAd
| Domain | When |
|---|---|
| amobeleza.com.br | Aug 2025 |
MainAd to AppNexus
| Domain | When |
|---|---|
| opodo.co.uk | Jun 2026 |