Open
Cached
·
just now
91/100
SECURITY SCORE
Certificate Information
Subject
CN=letstalkscience.ca
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M03
Valid From
May 12, 2025
Valid Until
June 10, 2026
160 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
95:1F:A9:57:14:6B:08:76:BF:98:DE:51:72:B8:32:9E:58:55:25:BD:E0:4E:7E:5D:08:6C:0A:F3:70:70:D8:3E
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=31536000
Content-Security-Policy
Good
upgrade-insecure-requests; block-all-mixed-content; default-src; +7 more
upgrade-insecure-requests;block-all-mixed-content;default-src 'self' https://www.gstatic.com https://www.google.com;script-src 'self' https://localhost:44399 https://www.google.com https://fonts.googleapis.com https://www.googletagmanager.com https://www.gstatic.com 'nonce-sxiRyU01sgZmS+jozak5yf1B7+MBhI0VYlLsuaIjRCU=';style-src 'self' https://fonts.googleapis.com 'unsafe-inline';connect-src 'self' https://www.google-analytics.com https://stats.g.doubleclick.net https://www.google.com;font-src 'self' https://fonts.googleapis.com https://fonts.gstatic.com;img-src 'self' https://www.google-analytics.com https://www.google.ca https://www.google.com;frame-ancestors 'self';base-uri 'self'
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Strengthen CSP by removing 'unsafe-eval'
- • 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