Domain History

preprod.cityline.com

Grade D · 51/100 · 4/7 security headers present

Security Score

51/ 100

Security Headers

4/ 7

CSP Violations

NoViolations

Issues Found

23Issues

Recommendations

5Available

Security

51 / 100

Moderate security gaps found — unsafe directives or weak source restrictions.

Compliance

63 / 100

Several compliance gaps found in CSP implementation.

Best Practices

57 / 100

Basic practices followed but missing important optimizations.

CSP Analysis

Content Security PolicyHIGH

default-src 'self'; script-src 'report-sample' 'self' *.awswaf.com anymind360.com cdn.id5-sync.com cdn.prod.uidapi.com challenges.cloudflare.com *.google.com connect.facebook.net appleid.cdn-apple.com player.vimeo.com securepubads.g.doubleclick.net web-chat-assets.imbee.io *.google-analytics.com www.googletagmanager.com www.googletagservices.com *.googlesyndication.com *.adtrafficquality.google *.youtube.com cdn.jsdelivr.net oa.openxcdn.net tags.crwdcntrl.net static.criteo.net; style-src-elem 'report-sample' 'self' fonts.googleapis.com *.google.com 'sha256-CJ02OVqT7p9v9HDCMKiouj0TJ0ooW7ybXUHymIEqyeE=' 'sha256-0wFoxLWTA6T27YIInZDAw8Oiuey8EYEvoep1vDAGSdE='; style-src-attr 'self' 'unsafe-inline'; object-src 'none'; base-uri 'self'; connect-src 'self' https:; font-src 'self' data: fonts.gstatic.com; frame-src 'self' cm.g.doubleclick.net web-chat-assets.imbee.io challenges.cloudflare.com *.google.com *.googlesyndication.com *.adtrafficquality.google; img-src 'self' data: https:; manifest-src 'self'; media-src 'self'; worker-src 'self';

Directive Analysis

default-srcLOW

self

script-srcHIGH

report-sample self *.awswaf.com anymind360.com cdn.id5-sync.com cdn.prod.uidapi.com challenges.cloudflare.com *.google.com connect.facebook.net appleid.cdn-apple.com player.vimeo.com securepubads.g.doubleclick.net web-chat-assets.imbee.io *.google-analytics.com www.googletagmanager.com www.googletagservices.com *.googlesyndication.com *.adtrafficquality.google *.youtube.com cdn.jsdelivr.net oa.openxcdn.net tags.crwdcntrl.net static.criteo.net

•Subdomain wildcard '*.awswaf.com' in script-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.google.com' in script-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.google-analytics.com' in script-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.googlesyndication.com' in script-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.adtrafficquality.google' in script-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.youtube.com' in script-src - vulnerable to subdomain takeover

•HIGH RISK CDN: 'cdn.jsdelivr.net' in script-src - Hosts npm packages including Angular which enables CSP bypass via JSONP

•No nonces or hashes used for script-src

⚠cdn.jsdelivr.net: Hosts npm packages including Angular which enables CSP bypass via JSONP

style-src-elemMEDIUM

report-sample self fonts.googleapis.com *.google.com sha256-CJ02OVqT7p9v9HDCMKiouj0TJ0ooW7ybXUHymIEqyeE= sha256-0wFoxLWTA6T27YIInZDAw8Oiuey8EYEvoep1vDAGSdE=

•Subdomain wildcard '*.google.com' in style-src-elem - vulnerable to subdomain takeover

style-src-attrHIGH

self unsafe-inline

•Unsafe inline execution allowed in style-src-attr

object-srcLOW

none

base-uriLOW

self

connect-srcHIGH

self https:

•CRITICAL: 'https:' in connect-src allows scripts from ANY HTTPS domain

font-srcLOW

self data: fonts.gstatic.com

•Info: 'data:' URI in font-src

frame-srcHIGH

self cm.g.doubleclick.net web-chat-assets.imbee.io challenges.cloudflare.com *.google.com *.googlesyndication.com *.adtrafficquality.google

•Subdomain wildcard '*.google.com' in frame-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.googlesyndication.com' in frame-src - vulnerable to subdomain takeover

•Subdomain wildcard '*.adtrafficquality.google' in frame-src - vulnerable to subdomain takeover

img-srcHIGH

self data: https:

•Info: 'data:' URI in img-src

•CRITICAL: 'https:' in img-src allows scripts from ANY HTTPS domain

manifest-srcLOW

self

media-srcLOW

self

worker-srcLOW

self

Missing Directives

⚠HIGHMissing HIGH directive frame-ancestors (Framing control - prevents clickjacking)

⚠MEDIUMMissing MEDIUM directive form-action (Form submission control - prevents form hijacking)

⚠MEDIUMMissing MEDIUM directive style-src (Stylesheet source control)

Security Headers

✗Cross-Origin-Opener-PolicyMissing

Isolates the browsing context to prevent Spectre-type side-channel attacks and cross-origin window manipulation.

How to add it:

nginx

add_header Cross-Origin-Opener-Policy "same-origin" always;

apache

Header always set Cross-Origin-Opener-Policy "same-origin"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Cross-Origin-Opener-Policy to "same-origin"

✗Permissions-PolicyMissing

Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.

How to add it:

nginx

add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;

apache

Header always set Permissions-Policy "camera=(), microphone=(), geolocation=()"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Permissions-Policy value

✗Referrer-PolicyMissing

Controls how much referrer information is sent with requests, preventing data leaks to third parties.

How to add it:

nginx

add_header Referrer-Policy "strict-origin-when-cross-origin" always;

apache

Header always set Referrer-Policy "strict-origin-when-cross-origin"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Referrer-Policy to "strict-origin-when-cross-origin"

✓Strict-Transport-SecurityPresent

max-age=31536000

Forces browsers to use HTTPS for all future requests, preventing man-in-the-middle attacks and SSL stripping.

✓X-Content-Type-OptionsPresent

nosniff

Prevents browsers from MIME-sniffing responses away from the declared Content-Type, blocking drive-by downloads.

✓X-Frame-OptionsPresent

SAMEORIGIN

Prevents the page from being embedded in iframes, protecting against clickjacking attacks.

✓X-XSS-ProtectionPresent

Legacy XSS filter for older browsers. Modern browsers use CSP instead. Set to "0" to avoid false positives.

3 recommended security headers are missing on preprod.cityline.com.

Issues Found

•CRITICAL: 'https:' in connect-src allows scripts from ANY HTTPS domaincritical
•CRITICAL: 'https:' in img-src allows scripts from ANY HTTPS domaincritical
•HIGH RISK CDN: 'cdn.jsdelivr.net' in script-src - Hosts npm packages including Angular which enables CSP bypass via JSONPhigh
•Info: 'data:' URI in font-srcinfo
•Info: 'data:' URI in img-srcinfo
•Missing HIGH directive frame-ancestors (Framing control - prevents clickjacking)high
•Missing MEDIUM directive form-action (Form submission control - prevents form hijacking)medium
•Missing MEDIUM directive style-src (Stylesheet source control)medium
•Missing security header: Cross-Origin-Opener-Policymedium
•Missing security header: Permissions-Policymedium
•Missing security header: Referrer-Policymedium
•No nonces or hashes used for script-srcmedium
•Subdomain wildcard '*.adtrafficquality.google' in frame-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.adtrafficquality.google' in script-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.awswaf.com' in script-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.google-analytics.com' in script-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.google.com' in frame-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.google.com' in script-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.google.com' in style-src-elem - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.googlesyndication.com' in frame-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.googlesyndication.com' in script-src - vulnerable to subdomain takeovermedium
•Subdomain wildcard '*.youtube.com' in script-src - vulnerable to subdomain takeovermedium
•Unsafe inline execution allowed in style-src-attrhigh

Recommendations

→Add form-action directive with appropriate restrictions
→Add frame-ancestors directive with appropriate restrictions
→Add style-src directive with appropriate restrictions
→Consider implementing a stricter Content Security Policy
→Replace wildcards (*) with specific source lists

Beyond headers: infrastructure exposure

via OSN, our sister project

Security headers protect the browser. OSN maps what's exposed underneath — servers, open ports, known CVEs, DNS and WHOIS.

See what the internet sees about preprod.cityline.comWeak headers often come with other exposure — check the full picture.

See full exposure report on OSN →Free, no signup.