HTTP response header

Header usage statistics

X-Server-Upstream response header information and usage statistics.

Websites using header X-Server-Upstream 537
Percentage of websites that use X-Server-Upstream header <0.1%
Total discovered header values 17
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Distribution by websites popularity

X-Server-Upstream detection in the top websites by popularity

Top 10k sites 0 websites
Top 100k sites 1 websites
Top 1m sites 112 websites

Websites utilizing X-Server-Upstream

List of websites that use X-Server-Upstream header

Domain Country Rank Contacts
www.harrisburgacademy.org United States of America 31,558
www.punahou.edu United States of America 132,392
www.sps.edu United States of America 161,749
www.dalton.org United States of America 178,489
www.stalbansschool.org United States of America 187,856
www.episcopalhighschool.org United States of America 208,805
See full domain list

Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common X-Server-Upstream header values

Header value Value prevalence
kpe1-webpag-b01 28.31%
kpe1-webpag-d01 27.37%
kpe1-webpag-a01 25.51%
kpe1-webpag-d02 4.10%
kpe1-webpag-d03 3.17%
kpe1-webpag-b02 2.79%
kpe1-webapp-d01 1.86%
kpe1-webapp-a01 1.68%
kpe1-webpag-a03 1.68%
kpe1-webpag-a02 1.12%
kpe1-webpage-b03 1.12%
WEB01B 0.37%
kpe1-webapp-a03 0.19%
kpe1-webapp-b02 0.19%
kpe1-webapp-b03 0.19%
kpe1-webapp-d04 0.19%
WEB01A 0.19%