Open
Cached
·
just now
88/100
SECURITY SCORE
Certificate Information
Subject
CN=mail.superhuman.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
January 11, 2026
Valid Until
April 11, 2026
84 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
30:BB:2D:E6:54:38:F2:B7:4C:CE:08:7F:E6:49:51:6A:18:EC:DF:09:A6:90:BB:F6:D7:B3:63:6B:56:3C:04:A3
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; includeSubdomains
Content-Security-Policy
Good
frame-src; manifest-src; object-src; +9 more
frame-src 'self' blob: https://media.superhumanapp.com https://media.superhuman.com superhuman: https://headway-widget.net https://frames-commandbar-prod.commandbar.com https://frames-editor-prod.commandbar.com https://api.commandbar.com https://forms.hsforms.com https://forms-na2.hsforms.com; manifest-src 'none'; object-src blob: https://media.superhumanapp.com https://media.superhuman.com; style-src 'self' data: 'unsafe-inline' https://cdn.commandbar.com https://media.superhumanapp.com https://media.superhuman.com https://assets.mail.superhuman.com https://*.amplitude.com; frame-ancestors 'none'; default-src 'none'; connect-src blob: https://assets.mail.superhuman.com https://media.superhumanapp.com https://media.superhuman.com https://mail.superhuman.com chrome-extension://dcgcnpooblobhncpnddnhoendgbnglpn chrome-extension://eobaknjeikpchflggmklgggcodjgbagl superhuman-app://production https://accounts.superhuman.com https://www.google.com/m8/feeds/ https://people.googleapis.com/ https://places.googleapis.com/ https://gmail.googleapis.com/ https://content.googleapis.com https://www.googleapis.com/plus/ https://storage.googleapis.com/inbox-zero/2880x/ https://storage.googleapis.com/powerup-assets/ https://storage.googleapis.com/chrome-extension.superhuman.com/ https://greenhouse-powerup.herokuapp.com https://notify.bugsnag.com https://sessions.bugsnag.com https://graph.microsoft.com https://login.microsoftonline.com https://app.launchdarkly.com https://events.launchdarkly.com/ https://clientstream.launchdarkly.com https://api.commandbar.com https://t.commandbar.com https://edge.fullstory.com https://rs.fullstory.com https://r.lrkt-in.com https://forms.hsforms.com https://forms-na2.hsforms.com https://forms.hubspot.com https://hubspot-forms-static-embed.s3.amazonaws.com https://*.amplitude.com; font-src 'self' data: blob: https://media.superhumanapp.com https://media.superhuman.com https://assets.mail.superhuman.com; img-src 'self' data: blob: https://media.superhumanapp.com https://media.superhuman.com https://assets.mail.superhuman.com https://docs.google.com https://drive.google.com https://*.googleusercontent.com https://storage.googleapis.com/inbox-zero/2880x/ https://storage.googleapis.com/powerup-assets/ https://notify.bugsnag.com https://sessions.bugsnag.com https://cdn.commandbar.com https://files.commandbar.com https://forms.hsforms.com https://forms-na2.hsforms.com https://*.amplitude.com; media-src 'self' data: blob: https://media.superhumanapp.com https://media.superhuman.com https://assets.mail.superhuman.com https://storage.googleapis.com/inbox-zero/ https://storage.googleapis.com/email-assets.superhuman.com/ https://*.amplitude.com; script-src 'self' https://assets.mail.superhuman.com 'sha256-KZNf0Dw+P2+V7eMf/C62X/JFPdtVY2HsIwirp2JD1Es=' 'sha256-CKIAuKpRNZ4koXzMVEbikDsE3y9VNCyooraCCCUWC6A=' https://api.commandbar.com https://frames-commandbar-prod.commandbar.com https://cdn.commandbar.com https://edge.fullstory.com https://cdn.lrkt-in.com https://js.hsforms.net https://*.amplitude.com; worker-src 'self' data: blob: https://mail.superhuman.com https://assets.mail.superhuman.com;
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Strengthen CSP by removing 'unsafe-eval'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • 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