HTTP response header

Header usage statistics

X-Varnish-Action response header information and usage statistics.

Websites using header X-Varnish-Action 291
Percentage of websites that use X-Varnish-Action header <0.1%
Total discovered header values 22
Header uses directives No
Header values are unique or random No
Most popular in the country Spain

Connected technologies

Technologies that utilize the header

Varnish, category Cache Tools, total 464,156 websites

Distribution by websites popularity

X-Varnish-Action detection in the top websites by popularity

Top 10k sites 0 websites
Top 100k sites 3 websites
Top 1m sites 58 websites

Websites utilizing X-Varnish-Action

List of websites that use X-Varnish-Action header

Domain Country Rank Contacts
www.dynajet.de Germany 31,411
www.upress.umn.edu United States of America 76,832
www.cwi.nl Netherlands 81,816
hcn.org United States of America 101,888
psychology.ucdavis.edu United States of America 105,160
www.uni-stuttgart.de Germany 105,813
See full domain list
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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common X-Varnish-Action header values

Header value Value prevalence
FETCH (pass - response sets cookie) 38.14%
FETCH (pass - not cacheable) 18.21%
FETCH (override - backend not setting cache control) 10.31%
FETCH (html) 7.56%
FETCH (pass - response sets private/no-cache/no-store token) 5.50%
HIT (deliver - from cache) 4.81%
HIT 3.44%
FETCH (pass - authorized and no public cache control) 2.75%
FETCH (hit_for_pass - not cacheable) 2.41%
FETCH (deliver) 1.37%
FETCH (deliver - not cacheable) 0.69%
FETCH (insert) 0.69%
FETCH (pass - cache control disallows) 0.69%
MISS 0.69%
error 0.34%
FETCH 0.34%
FETCH (deliver - default) 0.34%
FETCH (hit_for_pass - response sets private/no-cache/no-store token) 0.34%
FETCH (pass - no cache directives from backend) 0.34%
FETCH (the rest) 0.34%