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SECURITY SCORE
Certificate Information
Subject
CN=*.flip.to
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 09, 2025
Valid Until
March 09, 2026
35 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
F8:30:80:F6:4E:46:B7:7D:8D:B5:CB:03:80:E2:16:2E:97:9C:2B:7B:5F:AA:6B:3B:64:5F:7D:C9:76:5A:4A:1C
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=86400; includeSubDomains
Content-Security-Policy
Basic
script-src; style-src; frame-src; +1 more
script-src 'self' 'unsafe-inline' 'unsafe-eval' https://challenges.cloudflare.com https://cdnjs.cloudflare.com https://ajax.googleapis.com https://www.google-analytics.com https://www.googletagmanager.com https://*.wistia.com https://*.wistia.net https://src.litix.io https://*.sentry-cdn.com;style-src 'self' 'unsafe-inline' https://cdnjs.cloudflare.com https://ajax.googleapis.com;frame-src 'self' https://challenges.cloudflare.com https://fast.wistia.com https://fast.wistia.net;frame-ancestors 'self'
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
- • 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
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