DNS Gurus
Cached · just now
91/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=Florida, L=St. Petersburg, O=PSCU Incorporated, CN=securemail.pscu.com
Issuer
C=US, O=DigiCert Inc, CN=DigiCert Global CA G2
Valid From
February 13, 2025
Valid Until
February 14, 2026 46 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A6:73:45:AC:BB:7E:79:EA:74:2D:43:BF:3F:80:A7:52:F7:7B:D7:B2:EB:C8:DB:BE:AD:9F:A4:92:80:3B:9D:38
Alternative Names
3 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Basic
script-src
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • 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