HTTP response header

PageSpeed adds a header X-Mod-Pagespeed in Apache and X-Page-Speed in Nginx with the version of PageSpeed being used.

Header usage statistics

X-Mod-Pagespeed response header information and usage statistics.

Websites using header X-Mod-Pagespeed232,630
Percentage of websites that use X-Mod-Pagespeed header0.25%
Total discovered header values173
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

X-Mod-Pagespeed Directives

X-Mod-Pagespeed directives value information and usage statistics

DirectiveShareWebsites countUnique Values

Connected technologies

Technologies that utilize the header

Google PageSpeed, category Performance, total 378,112 websites

X-Mod-Pagespeed header usage distribution by website popularity

Geographical Distribution

Header usage distribution by websites across the globe.

Websites utilizing X-Mod-Pagespeed

List of websites that use X-Mod-Pagespeed header

www.myinstants.com United States3,566
opendomain.org United States3,748
www.dataliberate.com GB3,796
www.napkyn.com United States4,629
www.subdelirium.com France4,756
www.rand.org United States5,330
See full domain list
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Common header values

List of top common X-Mod-Pagespeed header values

Header valueValue prevalence
Powered by mod_pagespeed2.94%
Powered By XPageSpeed1.24%
Powered By pagespeed1.19%
Powered By KingHost and mod_pagespeed0.66%
Powered By ProfesionalHosting0.24%
Lightning fast by default0.14%