HTTP response header

The X-Varnish HTTP header allows you to find the correct log-entries for the transaction. For a cache hit X-Varnish will contain both the ID of the current request and the ID of the request that populated the cache. It makes debugging Varnish a lot easier.

Header usage statistics

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

Websites using header X-Varnish-Cache 36,061
Percentage of websites that use X-Varnish-Cache header <0.1%
Total discovered header values 178
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

Varnish, category Cache Tools, total 1,806,722 websites

Distribution by websites popularity

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

Top 10k sites 29 websites
Top 100k sites 388 websites
Top 1m sites 2,517 websites

Websites utilizing X-Varnish-Cache

List of websites that use X-Varnish-Cache header

Domain Country Rank Contacts
player.vimeo.com United States of America 51
vimeo.com United States of America 67
www.hhs.gov United States of America 1,390
www.homedepot.com United States of America 2,050
www.scientificamerican.com United States of America 2,147
www.politico.com United States of America 2,246
See full domain list
Flat price per the report, subscription is not required.

Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common X-Varnish-Cache header values

Header value Value prevalence
MISS 53.86%
HIT 49.08%
0 4.97%
1 0.95%
PASS 0.94%
Cached 0.44%
Not cached 0.42%
MISS from varnish 0.24%
Hit from Varnish 0.21%
synth synth 0.16%
MISSED 0.08%
HIT-1 0.07%
YES 0.07%
MISS for / 0.05%
HIT cached 0.04%
MISS-1 0.04%
HIT02 0.03%
uncached 0.03%
Skip 0.03%
BYPASS 0.02%