Open
Cached
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just now
94/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=zope.dev
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
July 24, 2026
Valid Until
October 22, 2026
59 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
E9:42:17:BB:D4:D7:2A:9A:27:99:84:E4:21:B6:E9:83:6D:35:A8:3B:74:7B:D3:E1:51:30:FE:91:BF:62:03:72
Alternative Names
Security Configuration
TLS Protocols
TLS 1.0
TLS 1.1
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
Warnings
- • TLS 1.1 is deprecated and should be disabled
- • TLS 1.0 is deprecated and should be disabled
HTTP Security Headers
Status
Strict-Transport-Security
Good
max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
X-Frame-Options
Present
sameorigin, sameorigin
X-Content-Type-Options
Present
nosniff, nosniff
Referrer-Policy
Present
strict-origin-when-cross-origin, strict-origin-when-cross-origin
Permissions-Policy
Present
geolocation=(), camera=(), 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