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-Cnection42,415
Percentage of websites that use X-Cnection header<0.1%
Total discovered header values3
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country US

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 222,582 websites

Distribution by websites popularity

X-Cnection detection in the top websites by popularity

Top 10k sites19 websites
Top 100k sites154 websites
Top 1m sites849 websites

Websites utilizing X-Cnection

List of websites that use X-Cnection header

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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common X-Cnection header values

Header valueValue prevalence
keep-alive, close0.02%
close, keep-alive0.00%