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 88 other categories.
ADMAN is leading in News & Media, People & Society, Arts & Entertainment, Internet & Telecom and 41 other categories.
Silverpop is leading in most countries, including United States, United Kingdom, Canada, Australia and 33 other countries.
ADMAN is leading in Greece, Cyprus, Turkey, Bulgaria and 7 other countries.