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, Business & Industry, Software and 32 other categories.
Slashdot Widget is leading in People & Society, Religion & Spirituality, Clothing and Consumer Electronics.
SimilarWeb Traffic Sources is leading in most countries, including United States, Japan, Russia, Germany and 33 other countries.
Slashdot Widget hasn't got a lead over SimilarWeb Traffic Sources in any country.