Open
Cached
·
just now
54/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
C=CN, ST=Guangdong Province, L=Shenzhen, O=Tencent Technology (Shenzhen) Company Limited, CN=*.qcloudmail.com
Issuer
C=US, O=DigiCert Inc, CN=DigiCert Secure Site CN CA G3
Valid From
August 31, 2021
Valid Until
August 30, 2022
Expired
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
CD:57:2E:54:50:70:32:B8:57:0A:56:43:C3:DB:29:F3:25:9A:86:15:75:24:0E:71:5C:FA:99:CA:DC:5A:67:46
Alternative Names
Security Configuration
TLS Protocols
TLS 1.0
TLS 1.1
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
- • 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