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SECURITY SCORE
Certificate Information
Subject
CN=techcrunch.com
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
September 16, 2025
Valid Until
December 15, 2025
42 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
CA:13:B4:30:FA:39:03:66:EE:50:1C:C7:D8:9D:A8:EC:12:8F:67:57:0C:81:D8:25:07:3B:D0:86:51:D6:39:16
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=300;includeSubdomains
Content-Security-Policy
Basic
default-src; frame-ancestors; frame-src; +11 more
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Present
autoplay=(), camera=(), fullscreen=*, geolocation=*, display-capture=(self), microphone=()
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
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