AppNexus vs DoubleClick Ad Exchange (AdX)

Head-to-head usage across the sites we track.

Top sites by authority

AppNexus · DoubleClick Ad Exchange (AdX) · how many of each technology's sites sit in the web's highest authority tiers

Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.

By country

AppNexus · DoubleClick Ad Exchange (AdX) · share of sites in each country using one or the other

United States 63,153

4,155

United Kingdom 28,394

1,884

Canada 28,277

1,482

India 21,189

1,916

Germany 20,086

1,926

France 20,122

1,743

Australia 18,205

935

Spain 17,003

1,307

Audience countries from the Chrome UX Report, top markets of either technology.

Real user performance

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.

All AppNexus sites · All DoubleClick Ad Exchange (AdX) sites