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 Health, Medicine, Sports, Football and 25 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, Russia, United Kingdom, Italy and 13 other countries.

2 Fathom SEO is leading in Finland, New Zealand, Philippines and Portugal.