mod_pagespeed is an open-source Apache module that automatically optimizes web pages and resources on them.
https://developers.google.com/speed/pagespeed/mod
Operating Systems and Servers
Get access to data on 1,790,789 websites that are mod_pagespeed Customers. We know of 288,573 live websites using mod_pagespeed and an additional 1,502,216 sites that used mod_pagespeed historically and 93,244 websites in the United States.
Get a list of 1,790,789 websites using mod_pagespeed which includes location information, hosting data, contact details, 288,573 currently live websites and an additional 195,833 domains that redirect to sites in this list. 1,502,216 sites that used this technology previouslyand 93,244 websites in the United States currently using mod_pagespeed.
Countries
Financial
Group
Region