DNS Gurus
Open Cached · 20m ago
95/100 SECURITY SCORE

Certificate Information

Subject
CN=*.keltia.net
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
November 20, 2025
Valid Until
February 18, 2026 75 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
C7:12:57:BD:FB:4D:32:D3:47:AC:A8:D8:17:CB:C9:CD:BD:85:5A:40:74:5C:CA:13:74:C4:64:D0:0A:F3:ED:6F
Alternative Names
2 domains

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=15553000; includeSubDomains; preload
Content-Security-Policy
Good
frame-ancestors; default-src; frame-src; +2 more
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
interest-cohort=()
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Strengthen CSP by removing 'unsafe-eval'

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Authorized CAs
letsencrypt.org ; validationmethods=dns-01; accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/12910090
Incident Reporting
Recommendations
  • • Consider using critical flag (flags=128) for stricter CAA enforcement
  • • Consider adding 'issuewild' records to control wildcard certificate issuance

Subject Alternative Names

2 domains
keltia.net *.keltia.net