Open
Cached
·
just now
91/100
SECURITY SCORE
Certificate Information
Subject
CN=api.mettl.com
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M04
Valid From
October 29, 2025
Valid Until
November 27, 2026
310 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
07:86:09:F7:65:BF:5F:5F:8C:E3:9C:CF:45:EB:42:B7:8C:67:B6:7D:84:B8:4A:29:24:6A:60:AE:EE:8A:71:DD
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
HTTP Security Headers
Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Good
default-src; object-src; form-action; +1 more
default-src 'self'; object-src 'none'; form-action 'none'; frame-ancestors 'none';
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=()
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Strengthen CSP by removing 'unsafe-eval'
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