x-sub

HTTP response header

Header usage statistics

x-sub response header information and usage statistics.
Websites using header x-sub1,488
Percentage of websites that use x-sub header<0.1%
Total discovered header values1,486
Header uses directivesNo
Header values are unique or randomYes
Most popular in the country United States

x-sub Directives

x-sub directives value information and usage statistics
DirectiveShareWebsites countUnique Values

x-sub header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing x-sub

List of websites that use x-sub header
DomainCountryRankContacts
www.braziljs.org United States90,937
www.narratively.com United States101,959
www.wonkette.com United States102,763
www.platformer.news United States120,033
popular.info United States166,390
www.exponentialview.co United States183,323
See full domain list

Common header values

List of top common x-sub header values
Header valueValue prevalence
blocktrend0.13%
asiasentinel0.13%
0pennycasestudies0.07%
1100pennsylvania0.07%
21200.07%
2acops0.07%
5ish0.07%
888888880.07%
aaronrenn0.07%
abbybeall0.07%
abi0.07%
abor0.07%
abouthalf0.07%
acapela0.07%
accelerated0.07%
acceleratenetzero0.07%
aconomics0.07%
actionsperminute0.07%
zenjournalist0.07%
adamomastrangelo0.07%