In terms of market share, Fathom SEO is clearly lagging behind, losing to Klaustech in all segments.
Fathom SEO has better usage coverage in more websites categories. Including Business & Industry, Health, Senior Health, Computer & Electronics and 21 other categories.
Klaustech is leading in Arts & Entertainment, News & Media, Sports, Soccer and 3 other categories.
Klaustech is leading in most countries, including Japan and Turkey.
Fathom SEO is leading in United States.