Open
Cached
·
just now
96/100
SECURITY SCORE
Certificate Information
Subject
CN=api.upsales.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
November 15, 2025
Valid Until
February 13, 2026
31 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
CD:51:BC:93:F7:66:99:9E:9C:C6:89:8B:F4:02:1C:B0:45:3A:8D:D3:3B:8B:72:8F:97:6E:1D:7E:35:78:05:B7
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
font-src; frame-ancestors; object-src; +5 more
font-src 'self' *.getpostman.com documenter.postman.com fonts.gstatic.com fonts.googleapis.com *.pstmn.io; frame-ancestors 'none'; object-src 'none'; base-uri 'self'; img-src * data:; script-src 'self' 'strict-dynamic' *.getpostman.com documenter.postman.com documenter-assets.pstmn.io content.pstmn.io run.pstmn.io https://cdn.ravenjs.com 'nonce-3K9+X1TCEWC/2w4y5bCNA6f3JGParDhqLywjaxIUec57a/UO'; style-src 'self' 'unsafe-inline' *.getpostman.com documenter.postman.com *.pstmn.io fonts.gstatic.com fonts.googleapis.com; frame-src https://youtube.com https://www.youtube.com https://player.vimeo.com
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer-when-downgrade
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