Open
Cached
·
just now
77/100
SECURITY SCORE
Certificate Information
Subject
CN=post.atech.io
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
December 28, 2025
Valid Until
March 28, 2026
89 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
3C:CB:C6:98:98:A1:93:62:88:E7:B8:3E:38:06:E6:B2:B8:BA:9E:41:E1:E7:8D:7C:9B:1A:E1:2F:F6:9F:84:C3
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
HTTP Security Headers
Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Basic
child-src; connect-src; font-src; +4 more
child-src 'self'; connect-src 'self'; font-src 'self' https: data:; img-src 'self' https: data:; object-src 'none'; script-src 'self'; style-src 'self' https: 'unsafe-inline'
X-Frame-Options
Good
sameorigin
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
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