Open
Cached
·
just now
82/100
SECURITY SCORE
Certificate Information
Subject
CN=jointaro.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
December 20, 2025
Valid Until
March 20, 2026
85 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
85:C8:B0:5C:F1:BF:B4:C2:43:F9:64:A0:14:41:84:C6:7B:08:81:84:AA:14:47:60:27:1B:35:47:B4:DA:BA:51
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
Content-Security-Policy
Good
default-src; script-src; style-src; +4 more
default-src 'self' https://s.jointaro.com https://firebasestorage.googleapis.com; script-src 'self' https://accounts.google.com https://www.googletagmanager.com https://apis.google.com; style-src 'self' 'unsafe-inline' https://accounts.google.com https://fonts.googleapis.com; img-src 'self' data: https://firebasestorage.googleapis.com https://lh3.googleusercontent.com https://www.googletagmanager.com https://assets.leetcode.com https://s3-lc-upload.s3.amazonaws.com https://storage.googleapis.com; connect-src 'self' data: https://www.jointaro.com https://accounts.google.com https://firestore.googleapis.com https://*.firebaseio.com https://*.googleapis.com https://www.google-analytics.com https://*.algolia.net https://*.algolianet.com https://us-central1-tech-career-growth.cloudfunctions.net; font-src 'self' data: https://fonts.gstatic.com; frame-src 'self' data: https://auth.jointaro.com;
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Strengthen CSP by removing 'unsafe-eval'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add X-Content-Type-Options: nosniff
- • 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