X-Env

HTTP response header

Header usage statistics

X-Env response header information and usage statistics.

Websites using header X-Env 5,493
Percentage of websites that use X-Env header <0.1%
Total discovered header values 522
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-Env detection in the top websites by popularity

Top 10k sites 8 websites
Top 100k sites 44 websites
Top 1m sites 176 websites

Websites utilizing X-Env

List of websites that use X-Env header

Domain Country Rank Contacts
c1.staticflickr.com United States of America 3,161
farm9.staticflickr.com United States of America 3,499
farm4.static.flickr.com United States of America 4,667
farm3.static.flickr.com United States of America 4,721
alexanderwild.com United States of America 7,898
www.alexanderwild.com United States of America 7,898
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-Env header values

Header value Value prevalence
a=live, b=www, c=e8889be1, d=i-0f6f4e0838670042f 1.67%
a=live, b=www, c=e8889be1, d=i-0acff11c702947212 1.51%
a=live, b=www, c=e8889be1, d=i-0d3ca1bedcf57bee6 1.38%
a=live, b=www, c=e8889be1, d=i-0a37c913aa4aacf76 1.37%
a=live, b=www, c=e8889be1, d=i-087e46532f8a0ba99 1.26%
a=live, b=www, c=e8889be1, d=i-097b174b6635dabe0 1.24%
a=live, b=www, c=e8889be1, d=i-0f907b4d3f17998e5 1.20%
a=live, b=www, c=e8889be1, d=i-00a6e8221a3077d9d 1.20%
production 1.18%
a=live, b=www, c=e8889be1, d=i-018c35fabc3940ca3 1.17%
a=live, b=www, c=e8889be1, d=i-096402c1464e326de 1.07%
a=live, b=www, c=e8889be1, d=i-05fb970005d05e7e9 0.98%
a=live, b=www, c=e8889be1, d=i-0e172b070ca3a455b 0.98%
a=live, b=www, c=4cf206a9, d=i-0eee3c61f6acc3860 0.96%
a=live, b=www, c=e8889be1, d=i-05eb02145f598f263 0.95%
a=live, b=www, c=e8889be1, d=i-01f9b96afaaa3fd89 0.93%
a=live, b=www, c=ec58e149, d=i-034fa4be36160fb80 0.91%
a=live, b=www, c=e8889be1, d=i-0db48294052d31d7d 0.89%
a=live, b=www, c=ec58e149, d=i-09009ac633f8a1352 0.89%
a=live, b=www, c=e8889be1, d=i-06ea7e76cfea53054 0.89%