DNS Gurus
Cached · just now
93/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=California, O=Apple Inc., CN=idmsac.apple.com
Issuer
CN=Apple Public Server RSA CA 11 - G1, O=Apple Inc., ST=California, C=US
Valid From
February 03, 2026
Valid Until
August 27, 2026 142 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
03:FA:02:A6:A0:B5:2A:53:32:31:FA:4F:03:7E:10:56:5B:74:3B:0D:DF:B5:EF:6E:22:33:61:4B:3E:FA:9A:C1
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
Good
default-src; connect-src; font-src; +5 more Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Present
nosniff, nosniff
Referrer-Policy
Present
origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • 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