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SECURITY SCORE
Certificate Information
Subject
CN=kernelsol.com
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
November 30, 2025
Valid Until
February 28, 2026
45 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
BC:B2:17:57:4F:96:99:8C:78:2B:BD:1F:D3:01:41:FC:18:B2:0F:C8:A6:CB:57:B6:B3:2E:20:9C:D1:1A:C7:D7
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
script-src; style-src; worker-src; +11 more
script-src 'unsafe-eval' 'nonce-YWQwZjg1YWItMjZkOC00MWIwLTk5Y2ItM2NjY2E3NzI4ZDI3' 'strict-dynamic' https: 'unsafe-inline' 'report-sample';style-src https://d2irmdd7b5tkb3.cloudfront.net https: 'self' 'unsafe-inline' data:; worker-src * blob:; connect-src 'self' https: wss: data: blob:; img-src * data: blob: file:; font-src * data:; object-src 'self'; frame-src * blob:; child-src * blob:; media-src * blob: data:; base-uri 'self'; default-src *; frame-ancestors 'self' *.atlassian.net *.atl-paas.net *.atlassian.com trello.com bitbucket.org chrome-extension://npbjhobkibekbklkghlhfhieggcggpdb; report-uri https://web-security-reports.services.atlassian.com/csp-report/jira-frontend-static-prod
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • 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
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports