Automatic security check · Public OSINT only
Scanned URL
kubernetes.io security check
Public OSINT valuation for kubernetes.io: grade C (58/100). Title signal “Kubernetes”. 1 security headers present, 7 commonly expected headers missing. This is a defensive surface review — not a penetration test.
58
/100
Grade C
- High concern
- Elevated risk
- Caution advised
- Trusted — verify
- Strong protections
How we scored kubernetes.io
Positive signals
- TLS handshake OK (TLSv1.3).
- HTTP Strict Transport Security is present.
- DNS resolves publicly (A/AAAA).
- security.txt found (coordinated disclosure signal).
- robots.txt is publicly available.
- Final HTTP status 200 at https://kubernetes.io/.
Risk signals
- Content-Security-Policy not observed.
- X-Content-Type-Options missing.
Findings
- TLS handshake OK (TLSv1.3).
- HTTP Strict Transport Security is present.
- Content-Security-Policy not observed.
- X-Content-Type-Options missing.
- DNS resolves publicly (A/AAAA).
- security.txt found (coordinated disclosure signal).
- robots.txt is publicly available.
- Final HTTP status 200 at https://kubernetes.io/.
Technical details
DNS
resolved- A
- 3.33.186.135, 15.197.167.90
- AAAA
- —
- PTR
- afa7f374f51cc8991.awsglobalaccelerator.com
- error
- —
TLS / certificate
ok- version
- TLSv1.3
- cipher
- TLS_AES_128_GCM_SHA256
- issuer
- Let's Encrypt
- notAfter
- Jan 9 07:33:50 2027 GMT
- SAN sample
- kubernetes.io, www.kubernetes.io
- error
- —
HTTP & security headers
1 present- finalUrl
- https://kubernetes.io/
- status
- 200
- server
- Netlify
- x-powered-by
- —
- present
- strict-transport-security
- missing
- content-security-policy, x-content-type-options, x-frame-options, referrer-policy, permissions-policy, cross-origin-opener-policy, cross-origin-resource-policy
- cookie Secure
- False
- cookie HttpOnly
- False
Tech fingerprint (public)
passive- title
- Kubernetes
- generator
- —
- tech
- Google Analytics
- script hosts
- www.googletagmanager.com
- description
- —
RDAP / registration
unavailable- domain
- kubernetes.io
- registrar
- —
- created
- —
- expires
- —
- nameservers
- —
- status
- —
- error
- HTTP Error 404: Not Found
Public well-known
passive- /.well-known/security.txt
- HTTP 200 · found
- /robots.txt
- HTTP 200 · found
- /security.txt
- HTTP 404