Open
Cached
·
just now
93/100
SECURITY SCORE
Certificate Information
Subject
CN=www.nmugroup.com
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
January 18, 2026
Valid Until
April 18, 2026
81 days
Public Key
ECDSA
384 bit
(P-384)
Strong
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
90:13:8C:14:35:FD:BD:4D:D5:80:6C:B5:18:72:91:D3:90:5D:09:5E:5E:5C:75:9A:92:7F:31:FB:9E:35:0C:9A
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
Excellent
max-age=31536000; includeSubDomains; preload
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
- • 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
swisssign.com
letsencrypt.org
; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/7488140
Incident Reporting
mailto:[email protected]
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'issuewild' records to control wildcard certificate issuance