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SECURITY SCORE
Certificate Information
Subject
CN=web.app
Issuer
C=US, O=Google Trust Services, CN=WR4
Valid From
October 28, 2025
Valid Until
January 26, 2026
50 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
C4:13:E4:A6:37:EB:55:37:7A:20:18:54:FC:20:22:D9:CE:EA:44:FE:F6:06:A0:6E:2F:CB:E1:76:BA:9B:A0:2A
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=31556926; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; script-src; style-src; +9 more
default-src 'self' *.uk.bytekast.io; script-src 'self' 'unsafe-eval' 'unsafe-inline' *.uk.bytekast.io *.gstatic.com *.googleapis.com *.youtube.com *.ytimg.com; style-src 'self' 'unsafe-inline' *.uk.bytekast.io *.gstatic.com *.googleapis.com; connect-src 'self' wss://realtime.uk.bytekast.io:* *.uk.bytekast.io *.gstatic.com *.googleapis.com ; img-src 'self' data: blob: *.gstatic.com *.googleapis.com *.uk.bytekast.io *.ytimg.com; font-src 'self' *.uk.bytekast.io *.gstatic.com *.googleapis.com; media-src 'self' data: *.uk.bytekast.io ; object-src 'none'; frame-src 'self' *.uk.bytekast.io https://*.youtube.com https://*.pitch.com https://pitch.com https://view.officeapps.live.com https://drive.google.com; block-all-mixed-content; manifest-src 'self'; frame-ancestors 'none'
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