In terms of market share, Fathom SEO is clearly lagging behind, losing to Webclicktracker in all segments.
Webclicktracker has better usage coverage in more websites categories. Including Business & Industry, Industrial Goods & Services, Shopping, Construction & Maintenance and 20 other categories.
Fathom SEO is leading in Health, Senior Health, Computer & Electronics, People & Society and 15 other categories.
Webclicktracker is leading in most countries, including United States, Thailand, Canada, United Kingdom and 11 other countries.
Fathom SEO is leading in Japan and South Africa.