SimilarWeb Traffic Sources is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
SimilarWeb Traffic Sources has better usage coverage in more websites categories. Including Internet & Telecom, Business & Industry, Computer & Electronics, Software and 32 other categories.
Slashdot Widget is leading in Clothing, Religion & Spirituality and Consumer Electronics.
SimilarWeb Traffic Sources is leading in most countries, including United States, Germany, Russia, Japan and 54 other countries.
Slashdot Widget hasn't got a lead over SimilarWeb Traffic Sources in any country.