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, Computer & Electronics, Software, Business & Industry and 30 other categories.
Slashdot Widget is leading in Shopping, Clothing, Video Games, Telecommunications and one other category.
SimilarWeb Traffic Sources is leading in most countries, including United States, Japan, Russia, Turkey and 28 other countries.
Slashdot Widget hasn't got a lead over SimilarWeb Traffic Sources in any country.