SSL Verification Bypassed

The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for *.nhl-data.dk, nhl-data.dk, not for mail.leinumber.uk

86/100 SECURITY SCORE

Certificate Information

Subject
CN=*.nhl-data.dk
Issuer
C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA
Valid From
May 06, 2025
Valid Until
May 06, 2026 152 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
EE:E4:FB:46:19:BC:56:9E:6E:F8:E7:D3:6A:96:26:D9:BC:DB:68:0C:A3:E2:31:7B:66:5E:1F:F0:CD:67:D7:76
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=2592000
Content-Security-Policy
Weak
img-src; base-uri; worker-src; +3 more
X-Frame-Options
Good
sameorigin
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • Significantly strengthen CSP directives
  • Add X-Content-Type-Options: nosniff
  • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • No CAA records configured - any CA can issue certificates
Recommendations
  • Implement CAA records to restrict which CAs can issue certificates for your domain
  • This adds an extra layer of security against unauthorized certificate issuance
  • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • Consider adding 'iodef' record to receive security incident reports

Subject Alternative Names

2 domains