ADMAN is leading in Top 10K Sites and Top 100K Sites.
Silverpop has better usage coverage in more websites categories. Including Business & Industry, Shopping, Death, Health and 94 other categories.
ADMAN is leading in News & Media, People & Society, Arts & Entertainment, Internet & Telecom and 37 other categories.
Silverpop is leading in most countries, including United States, United Kingdom, Australia, Canada and 49 other countries.
ADMAN is leading in Greece, Cyprus, Bulgaria, Norway and 10 other countries.