Open
Cached
·
just now
95/100
SECURITY SCORE
Certificate Information
Subject
CN=tfhub.dev
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
September 19, 2025
Valid Until
December 18, 2025
33 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
85:89:E0:FE:1C:06:6F:B1:E5:38:5B:4C:F7:31:4E:E2:57:1B:64:94:0A:7F:A3:20:03:E9:43:4C:0D:90:1A:75
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
Excellent
max-age=63072000; includeSubDomains; preload
Content-Security-Policy
Basic
object-src; script-src; base-uri; +2 more
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • 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