Domain History

hhla.de

Grade F · 27/100 · 1/7 security headers present

Security Score

27/ 100

Security Headers

1/ 7

CSP Violations

NoViolations

Issues Found

15Issues

Recommendations

11Available

Security

27 / 100

Critical security vulnerabilities — CSP provides minimal protection.

Compliance

24 / 100

Non-compliant — CSP implementation is incomplete or report-only.

Best Practices

20 / 100

Best practices largely absent — review CSP configuration.

CSP Analysis

Content Security PolicyMEDIUM

frame-ancestors 'self' hhla.de *.hhla.de https://hhla-inside.coyocloud.com ;

Directive Analysis

frame-ancestorsMEDIUM

self hhla.de *.hhla.de https://hhla-inside.coyocloud.com

•Subdomain wildcard '*.hhla.de' in frame-ancestors - vulnerable to subdomain takeover

Missing Directives

⚠CRITICALMissing CRITICAL directive default-src (Base fallback directive)

⚠CRITICALMissing CRITICAL directive script-src (JavaScript source control)

⚠HIGHMissing HIGH directive object-src (Plugin control - should be 'none')

⚠HIGHMissing HIGH directive base-uri (Base URI control - prevents base tag injection)

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

⚠MEDIUMMissing MEDIUM directive connect-src (API/XHR control - prevents data exfiltration)

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

⚠MEDIUMMissing MEDIUM directive img-src (Image source control)

⚠MEDIUMMissing MEDIUM directive font-src (Font 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-SecurityMissing

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

How to add it:

nginx

add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;

apache

Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"

cloudflare

SSL/TLS > Edge Certificates > Enable HSTS (toggle on, set max-age to 12 months, enable includeSubDomains)

✓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-ProtectionDeprecated

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

5 recommended security headers are missing on hhla.de.

Issues Found

•Missing CRITICAL directive default-src (Base fallback directive)critical
•Missing CRITICAL directive script-src (JavaScript source control)critical
•Missing HIGH directive base-uri (Base URI control - prevents base tag injection)high
•Missing HIGH directive object-src (Plugin control - should be 'none')high
•Missing MEDIUM directive connect-src (API/XHR control - prevents data exfiltration)medium
•Missing MEDIUM directive font-src (Font source control)medium
•Missing MEDIUM directive form-action (Form submission control - prevents form hijacking)medium
•Missing MEDIUM directive img-src (Image source control)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
•Missing security header: Strict-Transport-Securitymedium
•Missing security header: X-Frame-Optionsmedium
•Subdomain wildcard '*.hhla.de' in frame-ancestors - vulnerable to subdomain takeovermedium

Recommendations

→Add base-uri directive with appropriate restrictions
→Add connect-src directive with appropriate restrictions
→Add default-src directive with appropriate restrictions
→Add font-src directive with appropriate restrictions
→Add form-action directive with appropriate restrictions
→Add img-src directive with appropriate restrictions
→Add object-src directive with appropriate restrictions
→Add script-src directive with appropriate restrictions
→Add style-src directive with appropriate restrictions
→Replace wildcards (*) with specific source lists
→Review and tighten source lists in Content Security Policy

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 hhla.deWeak headers often come with other exposure — check the full picture.

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

hhla.de

1 scan since 9/11/2026

Latest: 27/100

Total Scans

Latest Score

27/100

First Scan

9/11/2026

Last Scan

9/11/2026

Security

27 / 100

Critical security vulnerabilities — CSP provides minimal protection.

Compliance

24 / 100

Non-compliant — CSP implementation is incomplete or report-only.

Best Practices

20 / 100

Best practices largely absent — review CSP configuration.

Scan History

Date	Score	CSP	Headers	Issues	Action
Sep 11, 2026	F (27)	Yes	1/7	15	View →

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HeaderTest security grade: F (27/100) for hhla.de

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