referrer-policy

HTTP response header

Referrer-Policy is a security header that can (and should) be included on communication from your website's server to a client. The Referrer-Policy tells the web-browser how to handle referrer information that is sent to websites when a user clicks a link that leads to another page or website

Header usage statistics

referrer-policy response header information and usage statistics.

Websites using header referrer-policy3,569,915
Percentage of websites that use referrer-policy header3.54%
Total discovered header values420
Header uses directivesYes
Header values are unique or randomNo
Most popular in the country US

referrer-policy directives (8 total)

  • no-referrer
  • no-referrer-when-downgrade
  • origin
  • origin-when-cross-origin
  • same-origin
  • strict-origin
  • strict-origin-when-cross-origin
  • unsafe-url

referrer-policy Directives

referrer-policy directives value information and usage statistics

DirectiveShareWebsites countUnique Values
no-referrer-when-downgrade37.16%1,326,5151
strict-origin-when-cross-origin34.18%1,220,0561
same-origin14.27%509,5171
no-referrer6.63%236,5731
origin-when-cross-origin4.45%158,9831
strict-origin3.07%109,6871
unsafe-url2.74%97,9571
origin1.79%63,8871

Distribution by websites popularity

referrer-policy detection in the top websites by popularity

Top 10k sites1,464 websites
Top 100k sites12,417 websites
Top 1m sites101,891 websites

Websites utilizing referrer-policy

List of websites that use referrer-policy header

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 referrer-policy header values

Header valueValue prevalence
no-referrer-when-downgrade35.67%
strict-origin-when-cross-origin30.30%
same-origin14.15%
no-referrer5.39%
strict-origin3.04%
origin-when-cross-origin2.98%
unsafe-url2.72%
origin1.71%
origin-when-cross-origin, strict-origin-when-cross-origin1.43%
no-referrer-when-downgrade, strict-origin-when-cross-origin1.24%
no-referrer, strict-origin-when-cross-origin1.05%
yes0.03%
default, no-referrer-when-downgrade0.02%
no-referrer, same-origin0.02%
'same-origin'0.02%
value0.01%
no-referrer, strict-origin-when-cross-origin, no-referrer-when-downgrade0.01%
same-origin,no-referrer-when-downgrade0.01%
origin, strict-origin-when-cross-origin0.01%
sameorigin0.01%