DNS Gurus

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 autoconfig.mia.nyflnerds.com, autodiscover.mia.nyflnerds.com, cpanel.mia.nyflnerds.com, cpcalendars.mia.nyflnerds.com, cpcontacts.mia.nyflnerds.com, ipv6.mia.nyflnerds.com, mail.mia.nyflnerds.com, mia.nyflnerds.com, webdisk.mia.nyflnerds.com, not for webmail.latercable.com

Cached · just now
81/100 SECURITY SCORE

Certificate Information

Subject
CN=autoconfig.mia.nyflnerds.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
January 04, 2026
Valid Until
April 04, 2026 51 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
CD:5E:8C:0F:56:70:B5:84:B9:59:EA:46:6A:43:91:47:44:2D:8D:BA:30:A2:AD:4B:6A:2D:D5:CE:0A:5C:FC:97
Alternative Names
12 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
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • 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