Open
Cached
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just now
92/100
SECURITY SCORE
Certificate Information
Subject
C=US, ST=California, O=Apple Inc., CN=rss.marketingtools.apple.com
Issuer
C=US, O=Apple Inc., CN=Apple Public Server ECC CA 1 - G1
Valid From
April 06, 2026
Valid Until
July 01, 2026
80 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
5D:FC:08:B6:9E:69:73:19:8C:FF:3A:AF:72:25:01:06:84:A2:9A:B0:FB:C5:E2:1C:AE:1B:63:CC:6F:C0:DC:14
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
Present
max-age=31536000; includeSubdomains
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • 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