HTTP response header

Header usage statistics

X-Vary response header information and usage statistics.

Websites using header X-Vary 495
Percentage of websites that use X-Vary header <0.1%
Total discovered header values 8
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Distribution by websites popularity

X-Vary detection in the top websites by popularity

Top 10k sites 0 websites
Top 100k sites 4 websites
Top 1m sites 17 websites

Websites utilizing X-Vary

List of websites that use X-Vary header

Domain Country Rank Contacts
www.chabad.org United States of America 12,662
www.vikingrivercruises.com United States of America 35,810
www.mitti.se United States of America 47,970
www.autocasion.com Spain 79,294
he.chabad.org United States of America 346,467
www.vikingcruises.co.uk United States of America 498,794
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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common X-Vary header values

Header value Value prevalence
User-Agent 106.67%
* 1.82%
Accept-Language,X-ETag,Accept-Encoding 0.61%
X-User-Hash,Accept-Encoding 0.40%
Accept-Encoding 0.20%
Accept-Encoding, User-Agent 0.20%
Accept,Accept-Encoding 0.20%
User-Agent,Accept-Encoding 0.20%