DNS Gurus
Cached · just now
95/100 SECURITY SCORE

Certificate Information

Subject
CN=ambassify.eu
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
January 23, 2026
Valid Until
April 23, 2026 80 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
0C:8C:D2:5E:B6:EC:40:2A:08:3F:10:64:B6:2F:A2:C2:38:D4:22:73:F0:B6:45:9A:F6:CF:6C:AC:D8:EA:14:63
Alternative Names
3 domains

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
Weak
upgrade-insecure-requests
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Present
geolocation=(), midi=(), sync-xhr=(), microphone=(), camera=(), magnetometer=(), gyroscope=(), fullscreen=(self), payment=()
Recommendations
  • • Significantly strengthen CSP directives

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Authorized CAs
amazon.com digicert.com letsencrypt.org
Wildcard CAs
digicert.com letsencrypt.org amazon.com
Incident Reporting
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement