Google Tag Manager vs Tealium

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

Top sites by authority

Google Tag Manager · Tealium · 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

Google Tag Manager · Tealium · share of sites in each country using one or the other

United States 888,125

17,856

India 331,986

2,825

Japan 317,322

1,531

United Kingdom 310,976

2,954

Brazil 308,826

1,570

Germany 266,066

2,357

Canada 236,747

3,394

France 237,204

2,172

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 Google Tag Manager sites · All Tealium sites