DNS Gurus
Cached · just now
75/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt

Certificate Information

Subject
CN=www21wc.cc
Issuer
C=US, O=Let's Encrypt, CN=YE2
Valid From
September 28, 2026
Valid Until
December 27, 2026 67 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
71:A4:B8:16:8C:53:D6:AE:4E:34:11:54:89:E9:3E:89:5B:74:80:96:EA:76:CD:78:E5:E8:2C:0A:81:D5:B4:E2
Alternative Names
90 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 Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
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

Subject Alternative Names

90 domains
www21wc.cc *.www21wc.cc *.assets.www21wc.cc *.www.www21wc.cc

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