Open
Cached
·
just now
93/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=codepen.io
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
September 11, 2026
Valid Until
December 10, 2026
63 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
18:CF:1F:1E:8E:73:E3:59:C3:9B:82:F8:07:D6:C0:EA:CC:5A:08:96:DA:E2:57:F3:D0:55:8D:74:C5:09:F7:A4
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
Excellent
max-age=31536000; includeSubDomains; preload
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Present
accelerometer=(), camera=(), clipboard-read=(); +13 more
Recommendations
- • 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