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just now
91/100
SECURITY SCORE
Certificate Information
Subject
CN=abon.com.cn
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
November 08, 2025
Valid Until
February 06, 2026
42 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
F1:8E:78:BC:3E:46:FD:F8:00:E3:0A:F2:F7:D1:92:C0:46:BF:37:FD:0A:DA:25:F7:C0:7F:54:4F:AF:C0:4B:C7
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=31557600
Content-Security-Policy
Basic
default-src; script-src; script-src-elem; +6 more
default-src 'self' https: ; script-src 'self' https: 'unsafe-inline' 'unsafe-eval' ; script-src-elem 'self' https: 'unsafe-inline' 'unsafe-eval' ; style-src 'self' https: 'unsafe-inline' 'unsafe-eval'; img-src 'self' https: data: ; form-action 'self' https: 'unsafe-inline' 'unsafe-eval'; media-src 'self' blob: https: ; font-src 'self' data: https: ; worker-src 'self' blob: ;
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
microphone=(),camera=(self)
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • 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