Open
Cached
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just now
92/100
SECURITY SCORE
Certificate Information
Subject
CN=lightningdesignsystem.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 23, 2025
Valid Until
March 23, 2026
39 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
2F:A8:62:8F:99:83:05:3B:C3:D9:78:8D:06:CF:16:65:4E:1F:87:35:48:D5:ED:D3:9B:BE:78:9F:67:F0:80:E4
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
Content-Security-Policy
Basic
default-src; base-uri; connect-src; +6 more
default-src https: 'self'; base-uri 'self'; connect-src *.hotjar.com:* vc.hotjar.io:* surveystats.hotjar.io wss://*.hotjar.com wss://api.appcues.net:* https: 'self' wss://replay.uxtweak.com:* *.google-analytics.com *.analytics.google.com *.googletagmanager.com; font-src 'self' data: script.hotjar.com https:; frame-ancestors 'self'; img-src 'self' https: data: script.hotjar.com *.google-analytics.com *.googletagmanager.com; object-src 'none'; script-src 'strict-dynamic' 'unsafe-eval' https: 'self' cdn.zeroheight.com 'nonce-VI1e8V8Eg30vt0btdlWb0WI3xtq1EXg11+h8rdSz/VM=' 'unsafe-inline'; style-src 'self' https: 'unsafe-inline'
X-Frame-Options
Good
sameorigin
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
origin-when-cross-origin, strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Consider adding Permissions-Policy to control browser features
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