X-Cnection

HTTP response header

X-Cnection: close header is added to server-side connections utilizing an existing Keep-Alive connection if the client request included the Connection: close header. The BIG-IP uses the X-Cnection: close header to track client-side connections that want to close the connection after receiving a response through a virtual server utilizing the OneConnect feature.

Header usage statistics

X-Cnection response header information and usage statistics.
Websites using header X-Cnection16,524
Percentage of websites that use X-Cnection header<0.1%
Total discovered header values4
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

X-Cnection Directives

X-Cnection directives value information and usage statistics
DirectiveShareWebsites countUnique Values

Connected technologies

Technologies that utilize the header
F5 BigIP, category Security Solutions, total 172,389 websites

X-Cnection header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing X-Cnection

List of websites that use X-Cnection header
DomainCountryRankContacts
www.americanexpress.com United States2,635
web.mit.edu United States2,680
purdue.edu United States4,615
www.purdue.edu United States4,615
refer.ccbill.com United States5,451
mcgill.ca Canada6,864
See full domain list

Common header values

List of top common X-Cnection header values
Header valueValue prevalence
close99.92%
keep-alive, close0.07%
close, keep-alive0.01%
keep-alive0.01%