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Cached
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just now
89/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=www.ti-edu.ch
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
April 17, 2026
Valid Until
July 16, 2026
81 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
D8:56:80:9E:66:BC:E2:EA:4F:F8:AB:D9:E6:07:26:2E:5C:36:EA:79:99:26:D3:6E:D1:01:9E:4C:E9:98:DE:4B
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=63072000
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
interest-cohort=(), browsing-topics=()
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Significantly strengthen CSP directives
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