HeaderAudit
F

amex.com

Score 5/100 ยท scanned 2026-08-04

Content-Security-Policy

amex.com sends an enforcing CSP. It is allowlist-based.

default-src 'self';script-src 'self' 'unsafe-inline' 'unsafe-eval' *;style-src 'self' 'unsafe-inline' *;img-src 'self' data: blob: *;font-src 'self' data: *;connect-src 'self' *;media-src 'self' blob: *;frame-ancestors 'self' *.intcx.net *.paragonrels.com *.sigmacomputing.com *.bkfsconnect.com *.bkfstest.com *.opraplan.com *.theice.com *.ice.com *.nyse.com *.kcgbondpoint.com *.icedataservices.com *.appspace.com *.appspaceusercontent.com;frame-src *;worker-src 'self' blob: *;object-src 'self' *;manifest-src 'self' *;form-action 'self' https://*.theice.com https://*.intcx.net https://*.ice.com https://*.nyse.com https://*.kcgbondpoint.com https://*.icedataservices.com https://*.eloqua.com https://*.salesforce.com;upgrade-insecure-requests;base-uri 'self';script-src-attr 'none'
DirectiveSources
default-src'self'
script-src'self' 'unsafe-inline' 'unsafe-eval' *
style-src'self' 'unsafe-inline' *
img-src'self' data: blob: *
font-src'self' data: *
connect-src'self' *
media-src'self' blob: *
frame-ancestors'self' *.intcx.net *.paragonrels.com *.sigmacomputing.com *.bkfsconnect.com *.bkfstest.com *.opraplan.com *.theice.com *.ice.com *.nyse.com *.kcgbondpoint.com *.icedataservices.com *.appspace.com *.appspaceusercontent.com
frame-src*
worker-src'self' blob: *
object-src'self' *
manifest-src'self' *
form-action'self' https://*.theice.com https://*.intcx.net https://*.ice.com https://*.nyse.com https://*.kcgbondpoint.com https://*.icedataservices.com https://*.eloqua.com https://*.salesforce.com
upgrade-insecure-requests(empty)
base-uri'self'
script-src-attr'none'

Headers sent

HeaderValue
servercloudflare

Critical findings

script-src allows 'unsafe-inline', which permits inline <script> blocks and event handlers. This defeats the main purpose of CSP.Replace it with a per-response nonce, or hashes for each inline script.
script-src allows * โ€” any host on the internet may serve executable script.Replace the wildcard with an explicit list, or a nonce with strict-dynamic.
No Strict-Transport-Security. A first visit over http, or any stripped link, can be intercepted before the redirect to https happens.Add: Strict-Transport-Security: max-age=31536000; includeSubDomains

Re-scan live

This is a snapshot from 2026-08-04. Check it now: