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SECURITY SCORE
Certificate Information
Subject
CN=cloud.revolutionlearning.com
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
December 19, 2025
Valid Until
March 19, 2026
47 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
B5:1A:BC:A8:66:07:97:85:9A:B2:5D:ED:B6:C5:DD:14:A4:F4:89:D0:6D:2C:62:29:62:2A:A8:7E:29:07:0D:31
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;
Content-Security-Policy
Good
default-src; base-uri; manifest-src; +11 more
default-src 'none';base-uri 'none';manifest-src 'self';script-src 'nonce-jCkJwMjtCgHZg13f9Bc0Lkjzmg9lbX7eKdWIJK3K2ug=';script-src-elem 'strict-dynamic' 'nonce-jCkJwMjtCgHZg13f9Bc0Lkjzmg9lbX7eKdWIJK3K2ug=';style-src 'self' 'unsafe-inline';img-src 'self' data: blob: https://*.tile.openstreetmap.org https://cloud.revolutionlearning.com;font-src 'self' data: *;connect-src 'self' * wss://cloud.revolutionlearning.com;media-src 'self';frame-src 'self' nc: https://cloud.revolutionlearning.com;frame-ancestors 'self' https://cloud.revolutionlearning.com;worker-src *;form-action 'self' https://cloud.revolutionlearning.com
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • 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