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-Cnection9,363
Percentage of websites that use X-Cnection headerless than 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 131,486 websites

Websites utilizing X-Cnection

List of websites that use X-Cnection header
DomainCountryRankContacts
curia.europa.eu Luxembourg2,112
americanexpress.com United States2,635
web.mit.edu United States2,680
belastingdienst.nl Netherlands2,770
purdue.edu United States4,615
refer.ccbill.com United States5,451
See full domain list

Common header values

List of top common X-Cnection header values
Header valueValue prevalence
close99.97%
close, keep-alive0.01%
keep-alive0.01%
keep-alive, close0.01%