Open
Cached
·
just now
95/100
SECURITY SCORE
Certificate Information
Subject
CN=id.superhuman.com
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M03
Valid From
September 04, 2025
Valid Until
October 03, 2026
258 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
80:B2:52:2E:93:B3:20:87:D3:27:2B:40:C9:6E:D9:A5:B2:E9:6E:45:11:28:FB:E8:9E:F5:88:AC:0E:BE:A8:3F
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
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Good
base-uri; block-all-mixed-content; child-src; +12 more
base-uri 'self'; block-all-mixed-content; child-src 'self'; connect-src 'self' http://127.0.0.1:* http://localhost:* https://id.superhuman.com https://gnar.grammarly.com/events https://f-log-at.grammarly.io/logv2 https://auth.grammarly.com https://gateway.grammarly.com/experimentation/treatment https://login.femetrics.grammarly.io/batch/import https://login.microsoftonline.com https://graph.microsoft.com https://www.google.com/recaptcha/ https://transcend-cdn.com/cm/ https://telemetry.transcend.io/ https://coda.io; default-src 'self'; font-src 'self' https://static-web.grammarly.com; frame-src 'self' https://www.google.com/recaptcha/ https://recaptcha.google.com/recaptcha/; form-action 'self'; frame-ancestors 'self'; img-src 'self' https://id.superhuman.com https://static-web.grammarly.com https://static.grammarly.com; object-src 'none'; script-src 'self' https://id.superhuman.com 'sha256-Tm6TOsop0bNhh3uPL7kvaRPGHrN6ztICYuZP/+GIL30=' https://www.google.com/recaptcha/ https://www.gstatic.com/recaptcha/ https://transcend-cdn.com/cm/ https://telemetry.transcend.io/; style-src 'self' https://id.superhuman.com 'unsafe-inline' https://transcend-cdn.com/cm/; manifest-src 'self'; worker-src 'self';
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Strengthen CSP by removing 'unsafe-eval'
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
Wildcard CAs
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts