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SECURITY SCORE
Certificate Information
Subject
CN=opentelemetry.io
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
October 06, 2025
Valid Until
January 04, 2026
62 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
7E:C9:BC:66:C2:D2:92:F5:28:BC:86:45:A0:A1:F4:FB:62:0A:A6:8C:D2:CB:15:6D:31:5A:78:61:AA:B4:04:4E
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
Content-Security-Policy
Weak
frame-ancestors
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Significantly strengthen CSP directives
- • 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
letsencrypt.org
; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/2185112545
pki.goog
letsencrypt.org
; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/54403714
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