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 Nextag ROI Optimizer has better usage coverage in more websites categories. Including Shopping, Marketing & Advertising, Home & Garden, Sports and 17 other categories.

2 Fathom SEO is leading in Business & Industry, Senior Health, Health, Computer & Electronics and 16 other categories.


1 Nextag ROI Optimizer is leading in most countries, including France, Germany, Great Britain, Sweden and 7 other countries.

2 Fathom SEO is leading in United States, Ukraine, South Africa and Japan.