DNS Gurus
Open Cached · just now
81/100 SECURITY SCORE

Certificate Information

Subject
UNKNOWN=04058690, UNKNOWN={:asn1_OPENTYPE, <<19, 2, 71, 66>>}, UNKNOWN={:asn1_OPENTYPE, <<19, 20, 80, 114, 105, 118, 97, 116, 101, 32, 79, 114, 103, 97, 110, 105, 122, 97, 116, 105, 111, 110>>}, C=GB, ST=Manchester, O=Sectigo Limited, CN=sectigo.com
Issuer
C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Extended Validation Secure Server CA
Valid From
March 21, 2025
Valid Until
March 21, 2026 136 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
85:91:EA:2F:87:A7:9B:22:2A:A7:CF:BA:9A:70:55:69:D5:BF:26:E6:45:DE:5F:9E:B9:A3:37:3B:1F:43:30:BD
Alternative Names
58 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
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • 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