TruEffect is leading in Top 100K Sites and Top 1M Sites.
TruEffect has better usage coverage in more websites categories. Including News & Media, Business & Industry, Arts & Entertainment, People & Society and 24 other categories.
Zeta Search is leading in Finance, Motorsports, Banking, Financial Management and one other category.
TruEffect is leading in most countries, including United States, Japan, United Kingdom, Russia and 17 other countries.
Zeta Search is leading in India.