Open
Cached
·
just now
92/100
SECURITY SCORE
Certificate Information
Subject
CN=settings.superhuman.com
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M01
Valid From
October 01, 2025
Valid Until
October 30, 2026
286 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
6C:E9:5F:C6:32:67:95:BE:3D:4B:A0:24:32:BB:CD:6A:47:D7:15:09:F5:8E:77:23:B4:22:92:C8:9F:C9:EB:17
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' gateway.grammarly.com gnar.grammarly.com id.superhuman.com treatment.superhuman.com gateway.superhuman.com f-log-at.grammarly.io website.femetrics.grammarly.io https://*.google.com https://*.googletagmanager.com https://*.google-analytics.com https://*.analytics.google.com https://*.googlesyndication.com https://*.googleadservices.com https://*.doubleclick.net https://bat.bing.com https://*.linkedin.com https://*.tiktok.com https://analytics-ipv6.tiktokw.us https://*.adsrvr.org https://*.pdscrb.com https://*.facebook.com;default-src 'self' static-web.grammarly.com;font-src 'self' static-web.grammarly.com;frame-src 'self' https://*.google.com https://*.googletagmanager.com https://*.adsrvr.org;form-action 'self';frame-ancestors 'self';img-src 'self' static-web.grammarly.com superhumanstatic.com https://*.google.com https://*.googletagmanager.com https://*.google-analytics.com https://*.gstatic.com https://*.doubleclick.net https://*.googlesyndication.com https://*.googleadservices.com https://*.adsrvr.org https://bat.bing.com https://*.tiktok.com https://analytics-ipv6.tiktokw.us https://*.linkedin.com https://*.pdscrb.com https://*.facebook.com https://arttrk.com;object-src 'self' static-web.grammarly.com;script-src 'nonce-ha73AtGTmdpbInlg8ROw6Q==' 'self' static-web.grammarly.com https://*.google.com https://*.googletagmanager.com https://*.googleadservices.com https://*.googlesyndication.com https://*.doubleclick.net https://bat.bing.com https://*.adsrvr.org https://*.tiktok.com https://analytics-ipv6.tiktokw.us https://*.facebook.net;style-src 'self' 'unsafe-inline' static-web.grammarly.com;manifest-src 'self';worker-src 'self'
X-Frame-Options
Missing
Not configured
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'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • 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
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
- • Consider adding 'issuewild' records to control wildcard certificate issuance