Market Share by Top Websites

1 WordStream is leading in Top 100K Sites and Top 1M Sites.

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

Websites Categories

1 WordStream has better usage coverage in more websites categories. Including Business & Industry, People & Society, Relationships & Dating, Autos & Vehicles and 52 other categories.

2 Fathom SEO is leading in Industrial Goods & Services, Senior Health, Beauty & Fitness, Fitness and 3 other categories.


1 WordStream is leading in most countries, including United States, United Kingdom, Mexico, Australia and 12 other countries.

2 Fathom SEO is leading in Germany, Japan and Philippines.