DNS Gurus
Open Cached · just now
90/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=Arkansas, L=Bentonville, O=Walmart Inc., CN=my.ddiwork.com
Issuer
C=BE, O=GlobalSign nv-sa, CN=GlobalSign RSA OV SSL CA 2018
Valid From
January 09, 2025
Valid Until
February 10, 2026 63 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
49:57:D6:48:00:FD:AA:29:D4:A5:D6:B2:14:50:C4:B8:2F:D4:E0:9E:78:34:29:C1:9A:44:40:92:B7:BD:3F:CD
Alternative Names
35 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
Missing
Not configured
Content-Security-Policy
Good
default-src
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Strengthen CSP by removing 'unsafe-eval'
  • • 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