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.mtl201.greengeeks.net, autodiscover.mtl201.greengeeks.net, cpanel.mtl201.greengeeks.net, cpcalendars.mtl201.greengeeks.net, cpcontacts.mtl201.greengeeks.net, ipv6.mtl201.greengeeks.net, mail.mtl201.greengeeks.net, mtl201.greengeeks.net, webdisk.mtl201.greengeeks.net, not for ftp.blendapps.com

Cached · just now
86/100 SECURITY SCORE

Certificate Information

Subject
CN=autoconfig.mtl201.greengeeks.net
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
December 25, 2025
Valid Until
March 25, 2026 49 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
81:C1:0E:AD:08:7C:BC:38:E5:A8:67:10:04:C6:B8:2F:F4:B6:76:B5:11:D8:CA:E8:19:16:84:A2:C9:00:40:DE
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
Excellent
max-age=31536000; includeSubDomains; preload
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 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