Celtra is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Celtra has better usage coverage in more websites categories. Including News & Media, Sports, Business & Industry, Internet & Telecom and 26 other categories.
SelectMedia is leading in Career & Education, Education and Business News.
Celtra is leading in most countries, including United States, United Kingdom, Indonesia, Germany and 16 other countries.
SelectMedia is leading in Canada, India, Brazil, Israel and 2 other countries.