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.core2.artehosting.com.mx, autodiscover.core2.artehosting.com.mx, core2.artehosting.com.mx, cpanel.core2.artehosting.com.mx, cpcalendars.core2.artehosting.com.mx, cpcontacts.core2.artehosting.com.mx, ipv6.core2.artehosting.com.mx, mail.core2.artehosting.com.mx, webdisk.core2.artehosting.com.mx, not for webmail.webzi.app

Cached · just now
79/100 SECURITY SCORE

Certificate Information

Subject
CN=autoconfig.core2.artehosting.com.mx
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 17, 2025
Valid Until
March 17, 2026 57 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
E6:64:60:5F:25:89:7C:60:FC:9A:4F:0C:08:00:EF:8B:EF:5C:AB:3A:76:4D:60:49:B6:1F:92:47:6E:5F:AB:DE
Alternative Names
12 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
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