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-Policy 458,173
Percentage of websites that use Referrer-Policy header 4.01%
Total discovered header values 161
Header uses directives Yes
Header values are unique or random No
Most popular in the country United States of America

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

Directive Share Websites count Unique Values
strict-origin-when-cross-origin 29.38% 134,594 1
no-referrer-when-downgrade 23.95% 109,730 1
same-origin 14.47% 66,296 1
no-referrer 3.31% 15,171 1
unsafe-url 2.17% 9,922 1
origin-when-cross-origin 1.57% 7,210 1
strict-origin 1.21% 5,550 1
origin 0.93% 4,247 1

Distribution by websites popularity

Referrer-Policy detection in the top websites by popularity

Top 10k sites 872 websites
Top 100k sites 4,530 websites
Top 1m sites 38,641 websites

Websites utilizing Referrer-Policy

List of websites that use Referrer-Policy header

Domain Country Rank Contacts
github.com United States of America 23
www.theguardian.com United States of America 52
www.dropbox.com United States of America 57
eventbrite.com United States of America 60
www.eventbrite.com United States of America 60
yelp.com United States of America 73
See full domain list

Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Referrer-Policy header values

Header value Value prevalence
strict-origin-when-cross-origin 36.02%
no-referrer-when-downgrade 31.68%
same-origin 18.22%
no-referrer 4.13%
unsafe-url 3.08%
origin-when-cross-origin 2.17%
strict-origin 1.70%
origin 1.23%
no-referrer, strict-origin-when-cross-origin 0.83%
no-referrer-when-downgrade, strict-origin-when-cross-origin 0.65%
origin-when-cross-origin, strict-origin-when-cross-origin 0.07%
default, no-referrer-when-downgrade 0.03%
yes 0.02%
no-referrer, same-origin 0.02%
same-origin,no-referrer-when-downgrade 0.02%
origin-when-cross-origin,strict-origin-when-cross-origin 0.01%
origin, strict-origin-when-cross-origin 0.01%
same-origin, strict-origin-when-cross-origin 0.01%
origin, no-referrer-when-downgrade 0.01%
origin, unsafe-url 0.01%