Open
Cached
·
just now
81/100
SECURITY SCORE
Certificate Information
Subject
CN=*.oschina.net
Issuer
C=CN, O=TrustAsia Technologies, Inc., CN=TrustAsia DV TLS RSA CA 2025
Valid From
June 12, 2025
Valid Until
June 11, 2026
207 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
98:89:C5:72:39:4C:4B:5A:1B:14:F4:8F:18:B6:6F:59:5E:F5:60:7D:90:FA:BB:75:07:83:65:D5:18:DD:BC:BD
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
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