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-Page-Speed response header information and usage statistics.

Websites using header X-Page-Speed 9,023
Percentage of websites that use X-Page-Speed header <0.1%
Total discovered header values 255
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 43,405 websites

Distribution by websites popularity

X-Page-Speed detection in the top websites by popularity

Top 10k sites 13 websites
Top 100k sites 182 websites
Top 1m sites 1,078 websites

Websites utilizing X-Page-Speed

List of websites that use X-Page-Speed header

Domain Country Rank Contacts
www.gap.com United States of America 2,152
www.altpress.com United States of America 2,660
archiveofourown.org United States of America 3,287
musopen.org United States of America 3,327
www.serverpoint.com United States of America 3,342
www.giga.de Germany 3,548
See full domain list

Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common X-Page-Speed header values

Header value Value prevalence 45.05%
on 14.52%
DN 8.86%
Powered By ngx_pagespeed 7.47% 3.34%
Powered by BitMitigate 2.01% 1.51%
ngx_pagespeed 1.12%
Enabled 1.08% 1.08% 0.59%
Pagespeed 0.53% 0.49% 0.48%
Yes 0.42%
Powered By KingHost and ngx_pagespeed 0.41% 0.39% (IISpeed) 0.33%
IX-PageSpeed 0.32%
Powered By AddPeople 0.30%