TruEffect is leading in Top 100K Sites and Top 1M Sites.
TruEffect has better usage coverage in more websites categories. Including People & Society, News & Media, Business & Industry, Arts & Entertainment and 43 other categories.
Zeta Search is leading in Finance, Online Marketing, Investing, Business Services and 6 other categories.
TruEffect is leading in most countries, including United States, Japan, Russia, China and 21 other countries.
Zeta Search is leading in Canada.