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92/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=New York, L=New York, O=Yahoo Holdings Inc., CN=www.wow.com
Issuer
C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert SHA2 High Assurance Server CA
Valid From
July 01, 2025
Valid Until
December 24, 2025 42 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
69:1C:87:99:00:01:C3:37:8B:7E:E4:DC:42:81:6D:B8:92:16:81:D3:86:D1:BE:41:3F:92:3B:59:DB:D1:03:09
Alternative Names

Security Configuration

TLS Protocols
TLS 1.0 TLS 1.1 TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)
Warnings
  • TLS 1.1 is deprecated and should be disabled
  • TLS 1.0 is deprecated and should be disabled

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000
Content-Security-Policy
Basic
frame-ancestors; default-src; img-src; +6 more
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Missing
Not configured
Recommendations
  • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Incident Reporting
Recommendations
  • Consider using critical flag (flags=128) for stricter CAA enforcement
  • Consider adding 'issuewild' records to control wildcard certificate issuance

Subject Alternative Names

97 domains