Domain History

version.messezentrum.de

Grade B · 75/100 · 6/7 security headers present

Security Score

75/ 100

Security Headers

6/ 7

CSP Violations

NoViolations

Issues Found

7Issues

Recommendations

1Available

Security

75 / 100

Good security foundation but some CSP hardening recommended.

Compliance

90 / 100

CSP implementation follows recommended standards and specifications.

Best Practices

47 / 100

Few best practices adopted — significant room for improvement.

CSP Analysis

Content Security PolicyHIGH

default-src 'none'; script-src 'self' 'unsafe-inline' 'report-sample'; style-src-attr 'unsafe-inline' 'report-sample'; img-src 'self' https://www.youtube.com https://m.youtube.com; base-uri 'self'; frame-src 'self' https://publish.flyeralarm.digital https://www.youtube-nocookie.com; child-src 'self'; connect-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'self'; manifest-src 'self'; media-src 'self'; object-src 'self'; style-src 'self' 'report-sample'; style-src-elem 'self' 'unsafe-inline' 'report-sample'; report-to 'self'; report-uri https://version.messezentrum.de/@http-reporting?csp=report&requestTime=1780042692974852&requestHash=3a6c53231386647610cbbcf17b9aeefc75ccb809

Directive Analysis

default-srcLOW

none

script-srcHIGH

self unsafe-inline report-sample

•Unsafe inline execution allowed in script-src

•No nonces or hashes used for script-src

style-src-attrHIGH

unsafe-inline report-sample

•Unsafe inline execution allowed in style-src-attr

img-srcLOW

self https://www.youtube.com https://m.youtube.com

base-uriLOW

self

frame-srcLOW

self https://publish.flyeralarm.digital https://www.youtube-nocookie.com

child-srcLOW

self

connect-srcLOW

self

font-srcLOW

self data:

•Info: 'data:' URI in font-src

form-actionLOW

self

frame-ancestorsLOW

self

manifest-srcLOW

self

media-srcLOW

self

object-srcLOW

self

style-srcLOW

self report-sample

style-src-elemHIGH

self unsafe-inline report-sample

•Unsafe inline execution allowed in style-src-elem

report-toLOW

self

report-uriLOW

https://version.messezentrum.de/@http-reporting?csp=report&requestTime=1780042692974852&requestHash=3a6c53231386647610cbbcf17b9aeefc75ccb809

•Deprecated: 'report-uri' is deprecated in CSP Level 3. Use 'report-to' directive instead.

Security Headers

✓Cross-Origin-Opener-PolicyPresent

same-origin

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

✓Permissions-PolicyPresent

accelerometer=("https://www.youtube-nocookie.com/embed/"), autoplay=("https://www.youtube-nocookie.com/embed/"), camera=(), encrypted-media=("https://www.youtube-nocookie.com/embed/"), fullscreen=("https://www.youtube-nocookie.com/embed/"), geolocation=(), gyroscope=("https://www.youtube-nocookie.com/embed/"), magnetometer=(), midi=(), microphone=(), payment=(), picture-in-picture=("https://www.youtube-nocookie.com/embed/"), sync-xhr=(), usb=()

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

✓Referrer-PolicyPresent

same-origin

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

✓Strict-Transport-SecurityPresent

max-age=31536000; includeSubDomains; preload

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-OptionsMissing

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

How to add it:

nginx

add_header X-Frame-Options "DENY" always;

apache

Header always set X-Frame-Options "DENY"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set X-Frame-Options to "DENY"

✓X-XSS-ProtectionPresent

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

1 recommended security header is missing on version.messezentrum.de.

Issues Found

•Deprecated: 'report-uri' is deprecated in CSP Level 3. Use 'report-to' directive instead.info
•Info: 'data:' URI in font-srcinfo
•Missing security header: X-Frame-Optionsmedium
•No nonces or hashes used for script-srcmedium
•Unsafe inline execution allowed in script-srchigh
•Unsafe inline execution allowed in style-src-attrhigh
•Unsafe inline execution allowed in style-src-elemhigh

Recommendations

→Consider implementing a stricter Content Security Policy

Beyond headers: infrastructure exposure

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