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SECURITY SCORE
Certificate Information
Subject
CN=crunchbase.com
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
October 22, 2025
Valid Until
January 20, 2026
66 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
8C:16:B8:D8:FF:66:5D:8A:8D:40:7F:82:07:FF:4D:2B:9B:E7:93:EA:69:41:12:77:3B:0F:B5:B0:57:DE:6A:04
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=15552000
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Add Content-Security-Policy header to prevent XSS attacks
- • 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
amazon.com
comodoca.com
digicert.com
; cansignhttpexchanges=yes
globalsign.com
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
ssl.com
Wildcard CAs
ssl.com
amazon.com
comodoca.com
digicert.com
; cansignhttpexchanges=yes
globalsign.com
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
Incident Reporting
mailto:[email protected]
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • You have authorized 7 CAs - consider limiting to only the CAs you actively use