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 1,799,239 websites that are mod_pagespeed Customers. We know of 294,433 live websites using mod_pagespeed and an additional 1,504,806 sites that used mod_pagespeed historically and 95,148 websites in the United States.
Get a list of 1,799,239 websites using mod_pagespeed which includes location information, hosting data, contact details, 294,433 currently live websites and an additional 199,488 domains that redirect to sites in this list. 1,504,806 sites that used this technology previouslyand 95,148 websites in the United States currently using mod_pagespeed.
Countries
Financial
Group
Region