1
mod_pagespeed is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.
2
In terms of market share, Rack Cache is clearly lagging behind, losing to mod_pagespeed in all segments.
1
mod_pagespeed has better usage coverage in more websites categories. Including Computers Electronics & Technology, Science & Education, Health, Arts & Entertainment and 16 other categories.
2
Rack Cache is leading in Business & Consumer Services, Jobs & Career, Community & Society and Gambling.
1
mod_pagespeed is leading in most countries, including Poland, Japan, Germany, France and 146 other countries.
2
Rack Cache is leading in United States, Taiwan, Sweden, New Zealand and 10 other countries.