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SECURITY SCORE
Certificate Information
Subject
CN=isoutsource.com
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
November 06, 2025
Valid Until
February 04, 2026
37 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
E1:0C:61:7E:62:E5:73:D9:08:90:B1:A9:61:DF:A3:35:3B:CD:55:9A:E0:C7:E8:DC:F8:E7:16:3C:BF:5D:95:AA
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
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • Add Content-Security-Policy header to prevent XSS attacks
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add X-Content-Type-Options: nosniff
- • 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
sectigo.com
ssl.com
amazon.com
comodoca.com
digicert.com
; cansignhttpexchanges=yes
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
Wildcard CAs
comodoca.com
digicert.com
; cansignhttpexchanges=yes
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
ssl.com
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
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts