Market Share by Top Websites

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

Websites Categories

1 Fathom SEO has better usage coverage in more websites categories. Including Business & Industry, Health, Senior Health, Computer & Electronics and 16 other categories.

2 Nextag ROI Optimizer is leading in Shopping, Marketing & Advertising, Sports, Home & Garden and 15 other categories.


1 Nextag ROI Optimizer is leading in most countries, including United States, France, Germany, Canada and 11 other countries.

2 Fathom SEO is leading in Belarus, China and Côte D'ivoire.