DNS Gurus
Cached · just now
85/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 6
YouTube logo YouTube Akamai logo Akamai Active incidents Apple Music logo Apple Music Apple Podcasts logo Apple Podcasts Instagram logo Instagram Twitter logo Twitter

Certificate Information

Subject
C=US, ST=California, O=Apple Inc., CN=macbook.tw
Issuer
C=US, O=Apple Inc., CN=Apple Public Server RSA CA 1 - G1
Valid From
January 25, 2026
Valid Until
April 25, 2026 21 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
40:03:4A:AF:2B:E3:11:08:EE:13:A1:4C:88:88:0F:09:8C:62:97:F3:08:5F:63:03:46:23:D8:26:AE:7D:1F:7B
Alternative Names
60 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=31536000; includeSubdomains; preload
Content-Security-Policy
YouTube logo
Basic
default-src; child-src; img-src; +2 more Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Not Authorized (Potential misconfiguration)
Authorized CAs
pki.apple.com
Wildcard CAs
pki.apple.com
Incident Reporting
CAA Issues
  • • CRITICAL: Current certificate issuer 'C=US, O=Apple Inc., CN=Apple Public Server RSA CA 1 - G1' is NOT authorized by CAA records. Authorized CAs: pki.apple.com
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement