Open
Cached
·
54m ago
94/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=whitepaper.cc
Issuer
C=US, O=Let's Encrypt, CN=YR2
Valid From
August 31, 2026
Valid Until
November 29, 2026
32 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
55:DC:AC:F2:D9:9B:83:AF:0F:D4:FA:2B:D1:C2:BF:00:3D:2B:CC:42:94:CD:C5:75:70:CA:FF:1F:79:95:45:23
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
Excellent
max-age=31536000; includeSubDomains; preload
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Present
accelerometer=(), camera=(), clipboard-read=(); +13 more
Recommendations
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
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