DNS Gurus
Cached · just now
74/100 SECURITY SCORE

Certificate Information

Subject
C=CA, ST=British Columbia, L=Vancouver, O=TELUS Corporation, CN=mail.telus.com
Issuer
C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid From
June 24, 2025
Valid Until
February 13, 2026 30 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A8:1D:8B:FD:25:1E:13:AD:9C:B9:8E:DA:A2:B6:66:D9:04:C0:78:BC:B7:F7:F7:22:12:C4:DE:E5:F6:5D:45:9E
Alternative Names
3 domains

Security Configuration

TLS Protocols
TLS 1.0 TLS 1.1 TLS 1.2
Forward Secrecy
Limited (Check cipher configuration)
Warnings
  • • TLS 1.3 is not supported (recommended)
  • • TLS 1.1 is deprecated and should be disabled
  • • TLS 1.0 is deprecated and should be disabled

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