DNS Gurus
Open Cached · just now
91/100 SECURITY SCORE

Certificate Information

Subject
CN=git.automotivelinux.org
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
September 30, 2025
Valid Until
December 29, 2025 52 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
D2:7A:12:F8:6F:5E:64:15:1E:51:BF:6E:62:56:1E:A3:7C:B5:84:DE:9A:61:F0:93:B3:C2:A1:75:6F:62:51:2D
Alternative Names
7 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
Present
max-age=15768001
Content-Security-Policy
Good
default-src; worker-src; style-src; +2 more
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Strengthen CSP by removing 'unsafe-eval'
  • • 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