Cross-Origin-Opener-Policy

HTTP response header

Header usage statistics

Cross-Origin-Opener-Policy response header information and usage statistics.

Websites using header Cross-Origin-Opener-Policy 1,036
Percentage of websites that use Cross-Origin-Opener-Policy header <0.1%
Total discovered header values 20
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Distribution by websites popularity

Cross-Origin-Opener-Policy detection in the top websites by popularity

Top 10k sites 50 websites
Top 100k sites 117 websites
Top 1m sites 470 websites

Websites utilizing Cross-Origin-Opener-Policy

List of websites that use Cross-Origin-Opener-Policy header

Domain Country Rank Contacts
www.facebook.com Ireland 2
twitter.com United States of America 3
www.instagram.com Ireland 7
photos.google.com United States of America 122
www.usatoday.com United States of America 123
mobile.twitter.com United States of America 475
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Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Cross-Origin-Opener-Policy header values

Header value Value prevalence
same-origin 72.88%
same-origin-allow-popups 19.40%
unsafe-none 4.05%
same-origin; report-to=coop-endpoint 0.77%
same-origin; report-to="default" 0.58%
same-origin-allow-popups;report-to="coop" 0.39%
cross-origin 0.29%
: same-origin 0.19%
(same-origin|same-origin-allow-popups|unsafe-none); report-to="reclameaqui.com.br" 0.19%
same-origin; report-to=/opnsense-report-csp-violation 0.19%
same-origin; report-to=default 0.19%
{"report_to":"default","unsafe-none","same-origin":"same-origin-allow-popups 0.10%
* 0.10%
Allow-PostMessage 0.10%
deny 0.10%
report-to='default'" 0.10%
same-origin-allow-popups; report-to="default" 0.10%
same-origin; 0.10%
same-origin; report-to='default' 0.10%
same-site 0.10%