X-Varnish-Action

HTTP response header

Header usage statistics

X-Varnish-Action response header information and usage statistics.
Websites using header X-Varnish-Action349
Percentage of websites that use X-Varnish-Action header<0.1%
Total discovered header values24
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country Italy

X-Varnish-Action Directives

X-Varnish-Action directives value information and usage statistics
DirectiveShareWebsites countUnique Values

Connected technologies

Technologies that utilize the header
Varnish, category Cache Tools, total 1,428,815 websites

X-Varnish-Action header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing X-Varnish-Action

List of websites that use X-Varnish-Action header
DomainCountryRankContacts
www.uni-stuttgart.de Germany29,878
www.upress.umn.edu United States32,915
www.zamg.ac.at Austria35,761
www.dpg-physik.de Germany51,824
www.ikr.uni-stuttgart.de Germany57,570
arpae.it Italy77,019
See full domain list

Common header values

List of top common X-Varnish-Action header values
Header valueValue prevalence
FETCH (override - backend not setting cache control)16.62%
FETCH (pass - not cacheable)16.05%
MISS12.03%
FETCH (pass - response sets cookie)11.17%
HIT (deliver - from cache)7.16%
FETCH (pass - response sets private/no-cache/no-store token)6.59%
FETCH (insert)5.44%
HIT5.44%
FETCH (html)4.01%
FETCH (pass - authorized and no public cache control)4.01%
FETCH3.44%
FETCH (hit_for_pass - not cacheable)2.58%
FETCH (deliver)1.15%
FETCH (pass - login scripts are not cacheable)1.15%
HIT (override - backend not setting cache control)0.57%
FETCH (deliver - default)0.29%
FETCH (deliver - not cacheable)0.29%
FETCH (hit_for_pass - response sets cookie)0.29%
FETCH (override - cache as anon)0.29%
FETCH (pass - cache control disallows)0.29%