Access-Control-Allow-Origin

HTTP response header

Allows restricted resources on a web page to be requested from another domain outside the domain from which the first resource was served (Indicates whether the response can be shared.)

Header usage statistics

Access-Control-Allow-Origin response header information and usage statistics.

Websites using header Access-Control-Allow-Origin 2,571,592
Percentage of websites that use Access-Control-Allow-Origin header 2.58%
Total discovered header values 10,001
Header uses directives Yes
Header values are unique or random No
Most popular in the country United States of America

Access-Control-Allow-Origin Directives (2 total)

  • *
  • null

Access-Control-Allow-Origin Directives

Access-Control-Allow-Origin directives value information and usage statistics

Directive Share Websites count Unique Values
* 86.73% 2,230,219 1
null <0.1% 1,818 1

Connected technologies

Technologies that utilize the header

Loadmill, category Dev Tools, total 30 websites

Distribution by websites popularity

Access-Control-Allow-Origin detection in the top websites by popularity

Top 10k sites 1,223 websites
Top 100k sites 10,229 websites
Top 1m sites 74,534 websites

Websites utilizing Access-Control-Allow-Origin

List of websites that use Access-Control-Allow-Origin header

Domain Country Rank Contacts
facebook.com Ireland 2
hugedomains.com United States of America 14
www.hugedomains.com United States of America 14
maxcdn.bootstrapcdn.com United States of America 26
static.parastorage.com United States of America 31
static.wixstatic.com United States of America 33
See full domain list
Flat price per the report, subscription is not required.

Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Access-Control-Allow-Origin header values

Header value Value prevalence
* 86.60%
https://developer.cimpress.io 3.00%
*.iyp.tw 0.56%
https://img-fl.nccdn.net 0.32%
cdn.kotisivukone.fi 0.27%
https://pixieset.com 0.25%
https://app.hu-manity.co 0.22%
http://gammatesting.jdseller.com 0.14%
https://s7.addthis.com 0.12%
https://admin.thebase.in 0.11%
https://park.101datacenter.net 0.10%
undefined 0.08%
https://imgur.com 0.08%
null 0.07%
http://www.wishpond.com, https://www.wishpond.com 0.06%
https://img-to.nccdn.net 0.06%
https://www.matthies.de 0.06%
http://localhost:3000 0.05%
none 0.05%
http://www.autoweb.co.uk 0.05%