Open
Cached
·
just now
85/100
SECURITY SCORE
Certificate Information
Subject
CN=live.dev.standards.site
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
December 04, 2025
Valid Until
March 04, 2026
40 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
DA:2F:20:27:A4:F5:50:36:57:9D:F7:75:85:97:78:D8:58:17:D0:7C:70:E9:9E:AA:0E:34:43:C0:86:BF:DC:8B
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=31536000
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
accelerometer=(), ambient-light-sensor=(), battery=(), camera=(), display-capture=(), encrypted-media=*, geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=*, publickey-credentials-get=(), sync-xhr=(), usb=(), wake-lock=(), xr-spatial-tracking=*, fullscreen=*, autoplay=*
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Add Content-Security-Policy header to prevent XSS attacks
- • 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