Open
Cached
·
just now
74/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=by.emailr.com
Issuer
C=US, O=Let's Encrypt, CN=YR1
Valid From
July 27, 2026
Valid Until
October 25, 2026
48 days
Public Key
RSA
3072 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
2C:E8:E2:07:88:50:B9:6C:16:06:11:F9:7B:E1:8A:7A:D5:99:F8:D8:5E:52:FA:CE:BD:85:95:CF:13:ED:32:A7
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