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just now
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SECURITY SCORE
Certificate Information
Subject
CN=inbox.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
October 08, 2025
Valid Until
January 06, 2026
39 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8E:D2:98:18:F6:0C:C1:5A:BF:E6:74:5A:14:1A:60:A9:D0:5E:04:5C:E8:FA:36:2E:08:26:F1:DB:E6:C0:B8:AB
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=31536000; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; base-uri; frame-ancestors; +8 more
default-src 'self'; base-uri 'self'; frame-ancestors 'self'; form-action 'self'; style-src 'self' https://hcaptcha.com https://*.hcaptcha.com; style-src-elem 'self' 'unsafe-inline'; style-src-attr 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' https://hcaptcha.com https://*.hcaptcha.com https://js.stripe.com; frame-src 'self' https://hcaptcha.com https://*.hcaptcha.com https://js.stripe.com; img-src 'self' 'unsafe-inline' 'unsafe-eval' https://js.stripe.com https://strapi.inbox.com; connect-src 'self' https://hcaptcha.com https://*.hcaptcha.com https://*.fjordmail.no;
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-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
comodoca.com
digicert.com
; cansignhttpexchanges=yes
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
ssl.com
Wildcard CAs
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
ssl.com
comodoca.com
digicert.com
; cansignhttpexchanges=yes
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • You have authorized 5 CAs - consider limiting to only the CAs you actively use
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts