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, Senior Health, Health, Industrial Goods & Services and 17 other categories.

2 Nextag ROI Optimizer is leading in Shopping, Marketing & Advertising, Home & Garden, Sports and 10 other categories.


1 Nextag ROI Optimizer is leading in most countries, including Germany, Canada, France, Czech Republic and 3 other countries.

2 Fathom SEO is leading in United States.