X-ENV

HTTP response header

Header usage statistics

X-ENV response header information and usage statistics.

Websites using header X-ENV34,369
Percentage of websites that use X-ENV header<0.1%
Total discovered header values1,557
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

X-ENV Directives

X-ENV directives value information and usage statistics

DirectiveShareWebsites countUnique Values

X-ENV header usage distribution by website popularity



Geographical Distribution

Header usage distribution by websites across the globe.






Websites utilizing X-ENV

List of websites that use X-ENV header

DomainCountryRankContacts
smugmug.com United States1,182
www.smugmug.com United States1,182
photos.smugmug.com United States1,245
cdn.smugmug.com United States1,269
secure.smugmug.com United States1,380
live.staticflickr.com United States1,713
See full domain list
Flat price per the report, subscription is not required.

Common header values

List of top common X-ENV header values

Header valueValue prevalence
a=live, b=www, c=e8889be1, d=i-0c2ff15f0c8d0df611.10%
a=live, b=www, c=e8889be1, d=i-0e6064a8c3549ab3a1.10%
production1.09%
a=live, b=www, c=e8889be1, d=i-0f4e08d13d7b419461.09%
a=live, b=www, c=e8889be1, d=i-08f5df4340c6bee611.09%
a=live, b=www, c=e8889be1, d=i-02398f770d06bfae01.08%
a=live, b=www, c=e8889be1, d=i-0a1a131ee2c0428c01.08%
a=live, b=www, c=e8889be1, d=i-0b6eec32f03b6f3bb1.06%
a=live, b=www, c=e8889be1, d=i-052d9c4d0dc3bf7e21.03%
a=live, b=www, c=e8889be1, d=i-04d0b3c3b4501ca011.02%
a=live, b=www, c=e8889be1, d=i-0f84efea06fe5676a0.99%
a=live, b=www, c=e8889be1, d=i-0f73613716da26e5a0.99%
a=live, b=www-cd, c=ec58e149, d=i-031b5fd55595217800.95%
a=live, b=www, c=e8889be1, d=i-04853526100318a160.94%
a=live, b=www-cd, c=ec58e149, d=i-07e6c3b8de19f9bae0.91%
a=live, b=www-cd, c=e8889be1, d=i-08055ffd0d748980d0.88%
a=live, b=www, c=e8889be1, d=i-0e8af84fd9b2a24510.88%
a=live, b=www-cd, c=4cf206a9, d=i-001bf16dc539e39b90.87%
a=live, b=www-cd, c=4cf206a9, d=i-07678097f8d4d0c030.87%
a=live, b=www-cd, c=e8889be1, d=i-0b0fa6971399f24b70.86%