Open
Cached
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just now
92/100
SECURITY SCORE
Certificate Information
Subject
CN=oauth.code.dev-theguardian.com
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M04
Valid From
November 19, 2025
Valid Until
December 18, 2026
339 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
D8:6C:26:C7:FF:25:70:51:E9:2C:D7:92:47:C4:BE:A5:8E:99:5A:A1:76:8B:DB:D4:84:A2:CB:AE:E9:3B:81:21
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
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Good
base-uri; default-src; frame-ancestors; +9 more
base-uri 'none';default-src 'none';frame-ancestors https://support.code.dev-theguardian.com;style-src 'unsafe-inline';script-src profile.code.dev-theguardian.com www.google.com www.gstatic.com assets.guim.co.uk;img-src profile.code.dev-theguardian.com static.guim.co.uk ophan.theguardian.com www.google.com;font-src assets.guim.co.uk;connect-src 'self' consent-logs.code.dev-guardianapis.com api.nextgen.guardianapps.co.uk https://api.pwnedpasswords.com idapi.code.dev-theguardian.com www.google.com ophan.theguardian.com;frame-src www.google.com;object-src 'none';script-src-attr 'none';upgrade-insecure-requests
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Strengthen CSP by removing 'unsafe-eval'
- • 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