jar.ee
Grade A+ · 100/100 · 6/6 security headers present
Security Score
Security Headers
CSP Violations
Issues Found
Recommendations
CSP Analysis
default-src 'self' https://assets.mailerlite.com; font-src 'self' https://fonts.mailerlite.com; frame-src 'self' https://open.spotify.com https://w.soundcloud.com https://www.youtube-nocookie.com; script-src 'self' https://groot.mailerlite.com https://assets.mailerlite.com https://assets.mlcdn.com/; style-src 'self' https://assets.mailerlite.com https://assets.mlcdn.com https://fonts.mailerlite.com; img-src 'self'; base-uri 'none'; form-action 'self' https://assets.mailerlite.com; frame-ancestors 'none'
Directive Analysis
Security Headers
geolocation=(), microphone=(), camera=()
Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.
no-referrer
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.
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.
jar.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/jar.ee" title="Security headers grade for jar.ee — HeaderTest">
<img src="https://headertest.com/api/badge/jar.ee" alt="HeaderTest security grade: A+ (100/100) for jar.ee" />
</a>[](https://headertest.com/results/jar.ee)