Open
Cached
·
just now
95/100
SECURITY SCORE
Certificate Information
Subject
CN=ntppool.org
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 03, 2025
Valid Until
March 03, 2026
60 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
22:D2:32:CE:16:A9:2C:CB:30:F3:2E:D6:F6:F4:BA:2A:84:BE:93:75:77:11:25:00:4E:F0:66:93:5A:CB:BC:84
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
default-src; frame-ancestors; connect-src; +6 more
default-src 'none'; frame-ancestors 'none'; connect-src 'self' www.ntppool.org st.ntppool.org status.ntppool.org 8ll7xvh0qt1p.statuspage.io send.webform.dev; font-src fonts.gstatic.com; form-action 'self' send.webform.dev checkout.stripe.com; img-src 'self' data: st.ntppool.org st.pimg.net news.ntppool.org *.mapper.ntppool.org; script-src 'self' 'unsafe-eval' 'unsafe-inline' cdn.statuspage.io st.ntppool.org st.pimg.net news.ntppool.org www.mapper.ntppool.org js.stripe.com send.webform.dev; style-src 'self' fonts.googleapis.com fonts.gstatic.com send.webform.dev st.ntppool.org st.pimg.net news.ntppool.org; report-uri https://ntppool.report-uri.com/r/t/csp/wizard
X-Frame-Options
Excellent
deny
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
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
Wildcard CAs
Incident Reporting
mailto:[email protected]
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement