X-Amz-Cf-Id

HTTP response header

CloudFront adds the X-Amz-Cf-Id header to the viewer request before forwarding the request to your origin. The header value contains an encrypted string that uniquely identifies the request. (Describes how CloudFront processes viewer requests and responses for your custom origin server)

Header usage statistics

X-Amz-Cf-Id response header information and usage statistics.

Websites using header X-Amz-Cf-Id 110,358
Percentage of websites that use X-Amz-Cf-Id header 0.97%
Total discovered header values 110,353
Header uses directives No
Header values are unique or random Yes
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

Amazon Cloudfront, category Content Delivery Networks, total 110,412 websites

Distribution by websites popularity

X-Amz-Cf-Id detection in the top websites by popularity

Top 10k sites 833 websites
Top 100k sites 2,705 websites
Top 1m sites 18,700 websites

Websites utilizing X-Amz-Cf-Id

List of websites that use X-Amz-Cf-Id header

Domain Country Rank Contacts
flickr.com United States of America 43
www.flickr.com United States of America 43
soundcloud.com United States of America 45
www.imdb.com United States of America 55
telegraph.co.uk United States of America 64
www.amazon.com United States of America 796,892
See full domain list

Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common X-Amz-Cf-Id header values

Header value Value prevalence
zdvJ870eh6cJ8PhSudbAEfNwfsOAGttBhqWJ64h5CzKGEE_802g66A== 0.00%
wj_T8RnALHtumJR2xwGJCSAgEAU2Bk0R4He2kcCsMtJ35S--CtMhZw== 0.00%
Qbq4pdT6sBQmpXzwz2nbZLQIH7HFdDt1qKlS6QsC0jC1pzqjdvuMxA== 0.00%
___5NYBzf-u3jq3HvX-AlqOy3xI-jO8dtOjUzUhXfG-depvXW8VZ3g== 0.00%
___mfhiF49LMS_AhsU01lvjPFKoZ-oc3Y8ue1AmhEQLjfxRXHFQyag== 0.00%
__--vK-wOZSSSQNQ4sbXa-tkffCPagsO0XaFRN1Hf4s3PtwAejN-lw== 0.00%
__0zX1GWvmQ6uX7-T5VlUVHnFWRvmvA4KP9kXGN_r8dCYSIHp0MhdQ== 0.00%
__11gnmYVHad3rMXkjJtpOI-CaGlA-m34Jja1s2e0UxlXHd-bUpyyA== 0.00%
__3oBXVFBNIZkYHKtIXo60ZQvwvtL0GeXobbDfpAuFSzZINPa9_wGQ== 0.00%
__8BBRuy-46IeI1DMCIkbWLeeIJEdJ_i7dUQUjbOR04GImgK_iYAXA== 0.00%
__e_FGK6HhwjDvrCJfE2434aJM-EGOB9jIs0ZFIS9AQBsEIpaw0OUw== 0.00%
__fnrpIN7ycY_kS3xmYTofH93mx-hSuu-Dp8ZV1-420rkem2gMCBeA== 0.00%
zZZYEQb5zTGqLawzr47iEQ2zIwpp4XVWzuUI3DX3zlTx9mtUEZeyAQ== 0.00%
__knxAvM21eg4fJAp8Xy_rudxyVQrzDy7zsxr9Hr1YJ2kdGvBUanTQ== 0.00%
__mdB7487E3JOlSBL1GxnIRXT_3zuKsbf1vUvXu-gUVwvXgaxw9yNg== 0.00%
__mkkIBPc1VEmtKG8TfoiyRXC191GCkgTBERMeaTkbLUhqGEDjJieQ== 0.00%
__O1PIEwv3BcqexLLITLR5rAeTPlbgfwV-Bq7MI3dxT219LxyChetw== 0.00%
__pPS8LMYW5-VvpRjk3iETeejaO3oEXqBLV_NEADnQ7AD_j9bxcIEg== 0.00%
__PSE0CURKF7Lm2wLSmem3PolyKb52npLbTB_dMk_dPpw3urFF9M6Q== 0.00%
__RviPKwIHZ4_F1jmQuHwweP5ajKuhjWeh6w6LRV-SLziXlzGjsqkg== 0.00%