Subdomains

HTTP response header

Header usage statistics

Subdomains response header information and usage statistics.
Websites using header Subdomains12
Percentage of websites that use Subdomains header<0.1%
Total discovered header values1
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

Subdomains Directives

Subdomains directives value information and usage statistics
DirectiveShareWebsites countUnique Values

Subdomains header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing Subdomains

List of websites that use Subdomains header
DomainCountryRankContacts
energy.gov United States2,293
doe.gov United States89,944
em.doe.gov United States575,551
swpa.gov United States644,274
nepa.gov United States957,747
electricity.doe.gov United States3,761,809
See full domain list

Common header values

List of top common Subdomains header values
Header valueValue prevalence
includeSubdomains100.00%