DNS Gurus
Cached · 1h ago
89/100 SECURITY SCORE

Certificate Information

Subject
CN=checkwriters.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
January 21, 2026
Valid Until
April 21, 2026 81 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
BC:8D:29:17:84:10:30:6D:FA:40:AB:CA:6F:54:00:95:CA:76:85:33:BA:0E:D9:04:94:76:19:93:37:C1:39:38
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
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
sameorigin
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
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

Subject Alternative Names

3 domains
checkwriters.com www.checkwriters.com

Other domains in certificate

checkwriterswp.brightcloudstudioserver.com