1
Polyfill.io is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.
2
In terms of market share, Sizzle is clearly lagging behind, losing to Polyfill.io in all segments.
1
Polyfill.io has better usage coverage in more websites categories. Including Lifestyle, Food & Drink, Science & Education, Law & Government and 11 other categories.
2
Sizzle is leading in Computers Electronics & Technology, E-commerce & Shopping, Games, Gambling and 5 other categories.
1
Polyfill.io is leading in most countries, including United States, United Kingdom, Canada, Japan and 158 other countries.
2
Sizzle is leading in South Korea and China.