Unclassified // For public releaseUSA24 · Official security dossier

Automatic security check · Public OSINT only

Company website

58%

Caution advised

Mixed public signals. Review missing headers, domain age, and independent reputation before trusting it. Passive OSINT only · inventKeys=false.

High concern
Elevated risk
Caution advised
Trusted — verify
Strong protections

kubernetes.io security check

Name: kubernetes.io security check — Caution advised | USA24
Item: kubernetes.io
Rating: 58
Author: USA24

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.

/100

Grade C

Company website · Services · Social

Company website

https://kubernetes.io/

Services & products

No service or product links found on the scanned pages.

Social & LinkedIn

No social or LinkedIn company links found on the scanned pages.

Links are extracted from public crawl HTML only. We never invent profiles or product pages.

Research engines · Complete scan

This complete report delivers web-check-class passive modules to customers — DNS, TLS, headers, mail auth, archives, CT logs and more — researched in the spirit of Lissy93/web-check. Port scan, traceroute and Shodan stay off by policy. Run a live check on the security-check tool for the full interactive dashboard.

Connect this report to your website

Add a free badge that links visitors to this official USA24 security report. You get referral traffic and a backlink; customers can verify the dossier.

Open this public report

Badge HTML (copy into your footer or About page)

<!-- USA24 Official Security Report badge -->
<a href="https://usa24.org/kubernetes.io/#security-report" title="USA24 Official Security Report for kubernetes.io" rel="noopener"><img src="https://usa24.org/security-check/assets/official-security-report-seal-v20261102c.png" alt="USA24 Official Security Report · score 58/100" width="88" height="88" loading="lazy" /></a>

Trustpilot · Glassdoor

Trustpilot

—

Official Trustpilot signals only — never scraped. Shown when a public Business Unit profile exists (inventKeys=false).

Open Trustpilot for kubernetes.io ↗

Glassdoor

—

No Glassdoor scrape. Search the official employer directory when no linked profile is present.

Search Glassdoor ↗

Hosting · IP · map

IP3.33.186.135
ASN—
Hosting—
Geo—

Map pending — IP geolocation not available (inventKeys=false).

Query
kubernetes.ioRequested hostname
IP
3.33.186.135Resolved A record
ASN
—Hosting org
Trace
ICMP traceroute off by policyPassive IP path only · inventKeys=false

Sources: DNS · ipwho.is geolocation · OpenStreetMap embed. Soft-fail if geo blocked · inventKeys=false.

Domain registration · business age

Registrar—

Registered—

Domain age—

Registry / location—

Public RDAP / WHOIS only. Soft-fail when WHOIS is blocked — we never invent registrar or age.

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

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: —

Company presence (crawl links)

extracted

companyWebsite: https://kubernetes.io/
serviceLinks: none found
socialLinks: none found

Hosting / IP geolocation

unavailable

IP: 3.33.186.135
A records: 3.33.186.135, 15.197.167.90
AAAA: —
PTR: afa7f374f51cc8991.awsglobalaccelerator.com
ASN: —
Hosting / ISP: —
City: —
Region: —
Country: —
Coords: —
source: —
error: HTTP Error 429: Too Many Requests

RDAP / registration

unavailable

domain: kubernetes.io
registrar: —
registry: —
registry location: —
created: —
age_days: —
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

Analyzed 2026-11-08T16:08:33Z USA24 passive OSINT (DNS/TLS/HTTP/RDAP/well-known) — no exploits More recent checks

More indepth need for a intelligence? -Visit http://companyforensics.org