SimilarWeb Traffic Sources is leading in Top 100K Sites and Top 1M Sites.
Slice Factory has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, Computer & Electronics, Software and 70 other categories.
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Slice Factory is leading in most countries, including India, France, United Kingdom, Mexico and 24 other countries.
SimilarWeb Traffic Sources is leading in United States, Japan, Germany, Turkey and 12 other countries.