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 44,063
Percentage of websites that use X-Page-Speed header <0.1%
Total discovered header values 361
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 184,813 websites

Distribution by websites popularity

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

Top 10k sites 12 websites
Top 100k sites 158 websites
Top 1m sites 943 websites

Websites utilizing X-Page-Speed

List of websites that use X-Page-Speed header

Domain Country Rank Contacts
www.zillow.com United States of America 730
www.buymeacoffee.com United States of America 1,050
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.giga.de Germany 3,548
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-Page-Speed header values

Header value Value prevalence 40.06%
on 23.64%
DN 10.41%
Powered By ngx_pagespeed 7.79%
Yes 1.83% 1.75%
Powered by BitMitigate 1.30%
IX-PageSpeed 1.18%
ngx_pagespeed 0.98% 0.80% 0.74% 0.61% 0.51%
Pagespeed 0.47%
Enabled 0.43%
0.1 0.41%
Powered by Salon Guru LTD 0.27% 0.23% 0.22% 0.20%