setifempty

HTTP response header

Header usage statistics

setifempty response header information and usage statistics.
Websites using header setifempty5,745
Percentage of websites that use setifempty header<0.1%
Total discovered header values13
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country Estonia

setifempty Directives

setifempty directives value information and usage statistics
DirectiveShareWebsites countUnique Values

setifempty header usage distribution by website rank



Geographical Distribution

Header usage distribution by websites across the globe.



Websites utilizing setifempty

List of websites that use setifempty header
DomainCountryRankContacts
energysavingtrust.org.uk GB19,352
www.energysavingtrust.org.uk GB19,352
iograficathemes.com Germany31,381
magicdust.com.au Australia41,117
tak-soft.com Estonia92,784
koolinus.net Italy184,159
See full domain list

Common header values

List of top common setifempty header values
Header valueValue prevalence
Referrer-Policy: same-origin99.39%
Strict-Transport-Security "max-age=31536000"0.24%
Referrer-Policy "same-origin"0.07%
X-Frame-Options "ALLOW-FROM https://championship.escapetogether.ch/"0.07%
Cache-Control "private, no-cache, no-store, must-revalidate, post-check=0, pre-check=0"0.03%
Content-Security-Policy "default-src 'self' 'unsafe-inline'; object-src 'none'; connect-src 'self' https://checkout.stripe.com https://api.stripe.com https://maps.googleapis.com; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://checkout.stripe.com 0.03%
X-Frame-Options ALLOW-FROM https://*.stampsealmaker.com0.03%
X-Frame-Options SAMEORIGIN0.03%
Cache-Control "max-age=60, must-revalidate, public"0.02%
Cache-Control "max-age=604800"0.02%
Content-Security-Policy "default-src 'self'; object-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; img-src 'self' data: https://chart.googleapis.com https://ps.w.org https://ts.w.org; font-src 'self' data:;"0.02%
Content-Security-Policy "default-src *; img-src * data:; script-src * 'unsafe-eval' 'unsafe-inline'; style-src * 'unsafe-inline'"0.02%
X-Frame-Options "SAMEORIGIN"0.02%