DNS Gurus
Open Cached · just now
75/100 SECURITY SCORE

Certificate Information

Subject
UNKNOWN={:asn1_OPENTYPE, <<12, 20, 80, 114, 105, 118, 97, 116, 101, 32, 79, 114, 103, 97, 110, 105, 122, 97, 116, 105, 111, 110>>}, UNKNOWN=578611, UNKNOWN={:asn1_OPENTYPE, <<19, 2, 85, 83>>}, UNKNOWN={:asn1_OPENTYPE, <<19, 13, 78, 101, 119, 32, 72, 97, 109, 112, 115, 104, 105, 114, 101>>}, C=US, ST=New Hampshire, L=Portsmouth, UNKNOWN={:asn1_OPENTYPE, <<19, 32, 50, 32, 73, 110, 116, 101, 114, 110, 97, 116, 105, 111, 110, 97, 108, 32, 68, 114, 105, 118, 101, 44, 32, 83, 117, 105, 116, 101, 32, 49, 53, 48>>}, O=GMO GlobalSign, Inc., CN=www.globalsign.com
Issuer
C=BE, O=GlobalSign nv-sa, CN=GlobalSign GCC R3 EV TLS CA 2025
Valid From
October 17, 2025
Valid Until
November 18, 2026 379 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
54:2F:75:5C:B4:3D:C5:CC:8E:7A:7E:71:8C:98:E1:59:19:46:F7:B4:56:8C:AD:B5:A2:9E:E8:21:7B:9C:97:5E
Alternative Names
38 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
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
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 X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • 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