Open
Cached
·
just now
94/100
SECURITY SCORE
Certificate Information
Subject
CN=shown.io
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
December 17, 2025
Valid Until
March 17, 2026
68 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
B9:0B:14:44:50:6C:0C:B8:C8:74:69:78:3B:9E:53:9D:CD:C1:DF:8F:6E:77:3B:51:43:94:48:C3:88:FB:F7:58
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=63072000; includeSubDomains; preload
Content-Security-Policy
Good
base-uri; connect-src; default-src; +8 more
base-uri 'self';connect-src 'self' ekr.zdassets.com *.google.com shown.zendesk.com;default-src 'self' static.zdassets.com;form-action 'self';img-src 'self' bat.bing.com www.googletagmanager.com app.shown.io *.facebook.com;media-src 'self';object-src 'none';script-src 'self' cdnjs.cloudflare.com unpkg.com cmp.quantcast.com edge.quantserve.com secure.quantserve.com rules.quantcount.com static.zdassets.com ekr.zdassets.com www.googletagmanager.com maxcdn.bootstrapcdn.com connect.facebook.com connect.facebook.net bat.bing.com *.typeform.com;style-src 'self' static.zdassets.com cdnjs.cloudflare.com unpkg.com gitcdn.github.io use.fontawesome.com fonts.googleapis.com embed.typeform.com 'unsafe-inline';font-src cdnjs.cloudflare.com fonts.googleapis.com fonts.gstatic.com use.fontawesome.com 'self';frame-src *.youtube.com www.googletagmanager.com form.typeform.com
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Strengthen CSP by removing 'unsafe-eval'
- • 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