Open
Cached
·
just now
85/100
SECURITY SCORE
Certificate Information
Subject
CN=app.jointaro.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 06, 2025
Valid Until
March 06, 2026
62 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
96:1D:FF:5E:AF:EB:73:FA:31:24:02:1B:97:58:EE:82:7A:E1:7A:B6:DF:0E:00:A8:5F:1F:16:32:2C:99:83:AA
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
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
- • Consider adding 'issuewild' records to control wildcard certificate issuance