Ad Lightning vs AppNexus

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

Top sites by authority

Ad Lightning · AppNexus · 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

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

United States 2,559

55,306

United Kingdom 1,473

25,318

Canada 1,580

24,555

India 879

18,466

Germany 869

18,026

France 823

17,057

Australia 1,080

16,016

Spain 786

15,020

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 Ad Lightning sites · All AppNexus sites