AppNexus vs Smart Ad Server

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

Top sites by authority

AppNexus · Smart Ad Server · 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 · Smart Ad Server · share of sites in each country using one or the other

United States 55,306

4,350

United Kingdom 25,318

2,499

Canada 24,555

2,715

Germany 18,026

2,605

India 18,466

1,736

France 17,057

2,742

Spain 15,020

2,613

Australia 16,016

1,406

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, Aug 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 Smart Ad Server sites