DNS Gurus
Cached · just now
79/100 SECURITY SCORE

Detected Technologies

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Let's Encrypt logo Let's Encrypt

Certificate Information

Subject
CN=cpcalendars.eelserver.com
Issuer
C=US, O=Let's Encrypt, CN=YR1
Valid From
June 29, 2026
Valid Until
September 27, 2026 31 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
C5:00:A0:B8:1B:B0:86:13:94:46:45:AB:A8:A9:23:51:9F:EA:DD:02:77:50:AF:E9:6E:10:8E:83:C7:A8:F9:3F
Alternative Names
8 domains

Security Configuration

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

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