Open
Cached
·
just now
91/100
SECURITY SCORE
Certificate Information
Subject
CN=medmastery.com
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M04
Valid From
November 16, 2025
Valid Until
December 15, 2026
336 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
9F:B8:70:6D:86:C2:8D:B8:CA:3B:6B:C8:0B:9F:BA:55:46:D6:EA:2F:D0:C9:83:33:6C:93:E0:1A:F3:35:77:84
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
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Good
default-src; script-src; style-src; +7 more
default-src 'self' dlcsvti05e0l0.cloudfront.net; script-src 'self' dlcsvti05e0l0.cloudfront.net; style-src 'self' 'unsafe-inline' dlcsvti05e0l0.cloudfront.net; img-src 'self' data: d3ndao5fv3s12.cloudfront.net dlcsvti05e0l0.cloudfront.net; font-src 'self' data: dlcsvti05e0l0.cloudfront.net; connect-src 'self'; media-src 'self'; frame-src 'self'; object-src 'none'; base-uri 'self'
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
Permissions-Policy
Present
autoplay=(self), camera=(), encrypted-media=(self), fullscreen=(), geolocation=(self), gyroscope=(self), magnetometer=(), microphone=(), midi=(), payment=(), sync-xhr=(self), usb=()
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Strengthen CSP by removing 'unsafe-eval'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
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