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-pagespeed 344,399
Percentage of websites that use x-mod-pagespeed header 0.35%
Total discovered header values 191
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

Google PageSpeed, category Cache Tools, total 384,420 websites

Distribution by websites popularity

x-mod-pagespeed detection in the top websites by popularity

Top 10k sites 21 websites
Top 100k sites 382 websites
Top 1m sites 5,033 websites

Websites utilizing x-mod-pagespeed

List of websites that use x-mod-pagespeed header

Domain Country Rank Contacts
siteorigin.com United States of America 1,766
www.juraforum.de Germany 2,425
www.routledge.com United States of America 2,559
www.myinstants.com United States of America 3,566
opendomain.org United States of America 3,748
www.dataliberate.com United States of America 3,796
See full domain list
Flat price per the report, subscription is not required.

Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common x-mod-pagespeed header values

Header value Value prevalence 58.51%
enabled 20.30% 4.36%
Powered By mod_pagespeed 4.18% 2.34% 2.18% 1.73% 0.96%
Powered By pagespeed 0.85% 0.70% 0.64%
Powered By KingHost and mod_pagespeed 0.49% 0.41% 0.36%
Powered By ProfesionalHosting 0.29%
Adapted For SharkSpeed 0.20% 0.12%
Lightning fast by default 0.10% 0.08% 0.08%