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 autodiscover.venteck.com, mail.cspmgt.com, autodiscover.cspmgt.com, autodiscover.allcomputercenter.com, mail.venteck.com, allcomputercenter.com, cspmgt.com, mail.allcomputercenter.com, www.mail.allcomputercenter.com, not for smtp.venteck.com

Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=mail.allcomputercenter.com
Issuer
C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., OU=http://certs.starfieldtech.com/repository/, CN=Starfield Secure Certificate Authority - G2
Valid From
August 13, 2025
Valid Until
August 26, 2026 202 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
18:F8:E6:87:F0:D1:EA:C1:68:15:F9:7D:E1:97:E4:91:57:CF:22:BB:7E:76:48:CC:64:33:C6:48:F2:41:E1:22
Alternative Names
9 domains

Security Configuration

TLS Protocols
TLS 1.2
Forward Secrecy
Limited (Check cipher configuration)
Warnings
  • • TLS 1.3 is not supported (recommended)

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
Missing
Not configured
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 X-Content-Type-Options: nosniff
  • • 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