web.s-investor.de
Grade D · 57/100 · 5/7 security headers present
Security Score
Security Headers
CSP Violations
Issues Found
Recommendations
Security
57 / 100Moderate security gaps found — unsafe directives or weak source restrictions.
Compliance
66 / 100Several compliance gaps found in CSP implementation.
Best Practices
25 / 100Best practices largely absent — review CSP configuration.
CSP Analysis
default-src 'self' *.s-investor.de *.financial.com; object-src 'none' ; script-src 'self' *.s-investor.de *.financial.com; style-src 'self' *.s-investor.de *.financial.com
Directive Analysis
Missing Directives
Security Headers
Isolates the browsing context to prevent Spectre-type side-channel attacks and cross-origin window manipulation.
How to add it:
add_header Cross-Origin-Opener-Policy "same-origin" always;Header always set Cross-Origin-Opener-Policy "same-origin"Rules > Transform Rules > HTTP Response Header Modification > Set Cross-Origin-Opener-Policy to "same-origin"Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.
How to add it:
add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;Header always set Permissions-Policy "camera=(), microphone=(), geolocation=()"Rules > Transform Rules > HTTP Response Header Modification > Set Permissions-Policy valuestrict-origin
Controls how much referrer information is sent with requests, preventing data leaks to third parties.
max-age=31536000; includeSubDomains
Forces browsers to use HTTPS for all future requests, preventing man-in-the-middle attacks and SSL stripping.
nosniff
Prevents browsers from MIME-sniffing responses away from the declared Content-Type, blocking drive-by downloads.
sameorigin
Prevents the page from being embedded in iframes, protecting against clickjacking attacks.
1; mode=block
Legacy XSS filter for older browsers. Modern browsers use CSP instead. Set to "0" to avoid false positives.
2 recommended security headers are missing on web.s-investor.de.
Issues Found
- •Missing HIGH directive base-uri (Base URI control - prevents base tag injection)high
- •Missing HIGH directive frame-ancestors (Framing control - prevents clickjacking)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 security header: Cross-Origin-Opener-Policymedium
- •Missing security header: Permissions-Policymedium
- •No nonces or hashes used for script-srcmedium
- •Subdomain wildcard '*.financial.com' in default-src - vulnerable to subdomain takeovermedium
- •Subdomain wildcard '*.financial.com' in script-src - vulnerable to subdomain takeovermedium
- •Subdomain wildcard '*.financial.com' in style-src - vulnerable to subdomain takeovermedium
- •Subdomain wildcard '*.s-investor.de' in default-src - vulnerable to subdomain takeovermedium
- •Subdomain wildcard '*.s-investor.de' in script-src - vulnerable to subdomain takeovermedium
- •Subdomain wildcard '*.s-investor.de' in style-src - vulnerable to subdomain takeovermedium
Recommendations
- →Add base-uri directive with appropriate restrictions
- →Add connect-src directive with appropriate restrictions
- →Add font-src directive with appropriate restrictions
- →Add form-action directive with appropriate restrictions
- →Add frame-ancestors directive with appropriate restrictions
- →Add img-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 projectSecurity headers protect the browser. OSN maps what's exposed underneath — servers, open ports, known CVEs, DNS and WHOIS.
web.s-investor.de
2 scans since 6/24/2026
Latest: 57/100
Total Scans
2
Latest Score
57/100
First Scan
6/24/2026
Last Scan
6/24/2026
Security
57 / 100Moderate security gaps found — unsafe directives or weak source restrictions.
Compliance
66 / 100Several compliance gaps found in CSP implementation.
Best Practices
25 / 100Best practices largely absent — review CSP configuration.
Score Trend
Security score progression over 2 scans
Show off your security grade
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