stoinov.com
Grade A+ · 100/100 · 7/7 security headers present
Security Score
Security Headers
CSP Violations
Issues Found
Recommendations
Security
100 / 100Excellent security posture with strong CSP protections in place.
Compliance
100 / 100CSP implementation follows recommended standards and specifications.
Best Practices
92 / 100Follows CSP best practices with nonces, restrictive defaults, and reporting.
CSP Analysis
default-src 'none'; script-src 'self' 'report-sample' 'sha256-7WDrkJysLe9AB7BhYZsHyMrCwU0iW7fWAWqhhqXCpas=' 'sha256-TrqUfpja++iPUVaaxS8kfQxTgw8F30Gg6SJOh52JAxc=' 'sha256-7JQabAwsjcMM7QvzPgJnU9W4menKrHSIWutf4vpobvs='; style-src 'self' 'report-sample' https://fonts.googleapis.com 'sha256-cC1C8yQ5v3EQT5UNkVHeCoEtfn8wZJvdfPG5g2TKKyQ=' 'sha256-zHToV5dBlx7S6piYSXqrKfNGujBa2tTVma9TEymkcX8=' 'sha256-N1kJ456gyqhhrpBbfFb8+HDuWXPujkFnp45+omZehtU='; img-src 'self'; font-src https://fonts.gstatic.com; connect-src 'none'; media-src 'none'; object-src 'none'; worker-src 'none'; frame-src 'none'; manifest-src 'none'; base-uri 'none'; form-action 'none'; frame-ancestors 'none'; report-to csp;
Directive Analysis
Security Headers
same-origin
Isolates the browsing context to prevent Spectre-type side-channel attacks and cross-origin window manipulation.
geolocation=(), camera=(), microphone=()
Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.
strict-origin-when-cross-origin
Controls how much referrer information is sent with requests, preventing data leaks to third parties.
max-age=31536000; includeSubDomains; preload
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.
DENY
Prevents the page from being embedded in iframes, protecting against clickjacking attacks.
0
Legacy XSS filter for older browsers. Modern browsers use CSP instead. Set to "0" to avoid false positives.
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.
stoinov.com
9 scans since 6/26/2026
Latest: 100/100
Total Scans
9
Latest Score
100/100
First Scan
6/26/2026
Last Scan
6/27/2026
Security
100 / 100Excellent security posture with strong CSP protections in place.
Compliance
100 / 100CSP implementation follows recommended standards and specifications.
Best Practices
92 / 100Follows CSP best practices with nonces, restrictive defaults, and reporting.
Score Trend
Security score progression over 9 scans
Scan History
| Date | Score | CSP | Headers | Issues | Action |
|---|---|---|---|---|---|
| Jun 27, 2026 | A+ (100) | Yes | 7/7 | 0 | View → |
| Jun 26, 2026 | A+ (100) | Yes | 6/7 | 0 | View → |
| Jun 26, 2026 | A+ (100) | Yes | 6/7 | 0 | View → |
| Jun 26, 2026 | A+ (100) | Yes | 6/7 | 0 | View → |
| Jun 26, 2026 | A+ (100) | Yes | 6/7 | 4 | View → |
| Jun 26, 2026 | A (82) | Yes | 6/7 | 12 | View → |
| Jun 26, 2026 | B (74) | Yes | 6/7 | 11 | View → |
| Jun 26, 2026 | F (0) | No | 6/7 | 3 | View → |
| Jun 26, 2026 | F (0) | No | 2/7 | 7 | View → |
Show off your security grade
Embed this badge on your site or README. It updates automatically after each scan and links back to this report.
<a href="https://headertest.com/results/stoinov.com" title="Security headers grade for stoinov.com — HeaderTest">
<img src="https://headertest.com/api/badge/stoinov.com" alt="HeaderTest security grade: A+ (100/100) for stoinov.com" />
</a>[](https://headertest.com/results/stoinov.com)