X-W4U-Upstream

HTTP response header

Header usage statistics

X-W4U-Upstream response header information and usage statistics.
Websites using header X-W4U-Upstream7,175
Percentage of websites that use X-W4U-Upstream header<0.1%
Total discovered header values68
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country Czech Republic

X-W4U-Upstream Directives

X-W4U-Upstream directives value information and usage statistics
DirectiveShareWebsites countUnique Values

X-W4U-Upstream header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing X-W4U-Upstream

List of websites that use X-W4U-Upstream header
DomainCountryRankContacts
epastorek.cz Czech Republic209,843
www.epastorek.cz Czech Republic209,843
koubovi.cz Czech Republic238,435
q2.cz Czech Republic315,583
www.q2.cz Czech Republic315,583
celostnimedicina.cz Czech Republic328,341
See full domain list

Common header values

List of top common X-W4U-Upstream header values
Header valueValue prevalence
http://data38_php0011.58%
http://parking11.00%
http://data38_php746.06%
http://data30_php565.27%
http://data29_php534.72%
http://data35_php734.54%
http://data36_php734.43%
http://data34_php714.07%
http://data27_php43.76%
http://data37_php743.71%
http://data39_php743.53%
http://data31_php563.29%
http://data32_php563.18%
http://data42_php003.14%
http://data28_php523.04%
http://data27_php522.77%
http://data33_php722.44%
http://data28_php532.10%
http://data41_php811.94%
http://data41_php821.57%