CanJS is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
CanJS has better usage coverage in more websites categories. Including Business & Industry, People & Society, Arts & Entertainment, Travel and 121 other categories.
Polymer is leading in Programming, Consumer Electronics, Technology News, Industrial Goods & Services and 21 other categories.
CanJS is leading in most countries, including Italy, United States, Turkey, China and 51 other countries.
Polymer is leading in India, Japan, Korea Republic, Colombia and 25 other countries.