DNS Gurus
Cached · just now
89/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 10
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Certificate Information

Subject
CN=cartstack.com
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M01
Valid From
January 21, 2026
Valid Until
February 19, 2027 322 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
0F:91:5D:DB:FC:B1:19:01:CE:24:61:88:63:D1:EB:DE:D7:4F:0E:DC:DA:A9:D5:A2:99:68:11:52:F4:42:F3:26
Alternative Names
8 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
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Gravatar logo
Good
script-src; style-src; img-src; +12 more Analyze
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • 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