Open
Cached
·
just now
86/100
SECURITY SCORE
Certificate Information
Subject
CN=umutdalgic.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 19, 2025
Valid Until
March 19, 2026
59 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
F1:F6:FB:D1:3C:BC:10:34:59:17:C8:70:2F:3F:1E:5F:D1:AD:D7:F7:06:15:B1:EB:45:EF:79:27:D9:02:81:88
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; frame-src; script-src; +7 more
default-src 'none'; frame-src data: *; script-src 'self' 'unsafe-inline' 'unsafe-eval' blob: https://maps.googleapis.com http://cdn.embedly.com https://www.youtube.com https://apis.google.com https://js.stripe.com https://*.sentry-cdn.com https://raw.githack.com https://www.gstatic.com https://player.3qsdn.com; worker-src 'self' blob:; style-src 'self' data: 'unsafe-inline' https://fonts.googleapis.com http://cdn.embedly.com https://cdn.jsdelivr.net https://*.3qsdn.com; font-src 'self' data: https://fonts.gstatic.com http://cdn.embedly.com https://*.3qsdn.com; media-src 'self' data: blob: https://*; img-src 'self' data: blob: https://*; connect-src 'self' https://storage.googleapis.com/ data: blob: http://localhost:* https://*.cloudfunctions.net https://*.googleapis.com http://api-cdn.embed.ly https://api-cdn.embed.ly https://vimeo.com https://cdn.aframe.io https://*.sentry.io https://*.schulverlag.ch https://*.neocities.org https://ar-js-org.github.io https://raw.githubusercontent.com https://go.int.edulog.ch https://go.edulog.ch https://plausible.io https://www.gstatic.com https://*.3qsdn.com https://*.hazu.swiss; manifest-src 'self';
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports
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Other domains in certificate