Market Share by Top Websites

1 Proclivity is leading in Top 100K Sites and Top 1M Sites.

2 In terms of market share, Fathom SEO is clearly lagging behind, losing to Proclivity in all segments.

Websites Categories

1 Proclivity has better usage coverage in more websites categories. Including Sports, Football, Health, Medicine and 24 other categories.

2 Fathom SEO is leading in Business & Industry, Senior Health, Industrial Goods & Services, Computer & Electronics and 13 other categories.


1 Proclivity is leading in most countries, including United States, United Kingdom, China, Germany and 7 other countries.

2 Fathom SEO is leading in Slovenia, Saudi Arabia and Austria.