Cached · just now
95/100 SECURITY SCORE

Certificate Information

Subject
CN=smartaim.nl
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 17, 2025
Valid Until
March 17, 2026 61 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
E4:BB:AC:CC:31:CD:35:12:B1:84:5E:2F:52:52:D2:C1:C8:E7:C4:3C:93:B8:D1:79:9D:2D:48:8B:FC:81:CC:8E
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
Basic
block-all-mixed-content; base-uri; default-src; +13 more
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
unsafe-url
Permissions-Policy
Present
geolocation=()
Recommendations
  • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • Improve CSP by adding more specific directives and removing 'unsafe-inline'

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Recommendations
  • Consider using critical flag (flags=128) for stricter CAA enforcement
  • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts

Subject Alternative Names

2 domains