AppNexus vs Nextdoor Ads

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

Top sites by authority

AppNexus · Nextdoor Ads · 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 · Nextdoor Ads · share of sites in each country using one or the other

United States 53,163

2,638

United Kingdom 24,886

520

Canada 24,461

652

India 18,232

657

Germany 17,552

242

France 16,584

230

Australia 15,760

304

Spain 15,151

250

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, 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.

All AppNexus sites · All Nextdoor Ads sites