m33.ee
Grade A+ · 100/100 · 6/6 security headers present
Security Score
Security Headers
CSP Violations
Issues Found
Recommendations
CSP Analysis
default-src 'unsafe-inline' 'unsafe-eval' 'self' data: *.gstatic.com *.googleapis.com *.youtube.com *.linkedin.oribi.io *.volument.com *.facebook.net *.licdn.com *.g.doubleclick.net *.hotjar.com *.hotjar.io wss://*.hotjar.com *.segment.com *.segment.io *.ads.linkedin.com *.linkedin.com .googleapis.com .gstatic.com *.googletagmanager.com *.google.com *.google.ee *.google-analytics.com .cookiebot.com .facebook.net .sumo.com .helpscout.net stats.g.doubleclick.net www.facebook.com .cloudfront.net sumo.com .trustpilot.com .klaviyo.com .elfsight.com .hotjar.com .stripe.com .klarnaservices.com .klarnacdn.net .ssl-images-amazon.com wss://.hotjar.com .bootstrapcdn.com .cartocdn.com .estpress.com .cloudflare.com .jsdelivr.net www.youtube.com; object-src 'none'; child-src 'self' .cookiebot.com .trustpilot.com .stripe.com *.hotjar.com www.google.com www.google.ee www.youtube.com www.facebook.com; upgrade-insecure-requests; block-all-mixed-content
Directive Analysis
Security Headers
accelerometer=Origin(), autoplay=(), camera=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), publickey-credentials-get=(), usb=()
Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.
no-referrer-when-downgrade
Controls how much referrer information is sent with requests, preventing data leaks to third parties.
max-age=31536000
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.
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.
m33.ee
3 scans since 7/18/2025
Latest: 100/100
Total Scans
3
Latest Score
100/100
First Scan
7/18/2025
Last Scan
7/18/2025
Score Trend
Security score progression over 2 scans
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/m33.ee" title="Security headers grade for m33.ee — HeaderTest">
<img src="https://headertest.com/api/badge/m33.ee" alt="HeaderTest security grade: A+ (100/100) for m33.ee" />
</a>[](https://headertest.com/results/m33.ee)