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
January 09, 2026
Valid Until
February 09, 2027 385 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
65:F6:4E:A8:A7:C9:9B:FF:44:C6:44:E4:08:0E:00:45:24:6A:F2:47:99:5D:83:93:BD:48:0B:F1:9E:A3:A3:4C
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