holderbaum.io

HTML metadata

Title

Holderbaum Studios · Technologie. Souverän.

Description

KI souverän nutzen statt blind vertrauen. Workshops und Insider von Jakob Holderbaum.

Language

de

Canonical

https://holderbaum.io

Open Graph

url

https://holderbaum.io

title

Holderbaum Studios — Technologie. Souverän.

description

KI souverän nutzen statt blind vertrauen. Workshops und Insider von Jakob Holderbaum.

Technology

CDN

Cloudflare

CMS

Next.js

Fonts

• Google Fonts

Third-party hosts loaded (2)

• fonts.googleapis.com×3
• fonts.gstatic.com×1

DNS records live

NS

• helium.ns.hetzner.de
• hydrogen.ns.hetzner.com
• oxygen.ns.hetzner.com

MX

• 1 aspmx.l.google.com
• 10 alt3.aspmx.l.google.com
• 10 alt4.aspmx.l.google.com
• 5 alt1.aspmx.l.google.com
• 5 alt2.aspmx.l.google.com

TXT

• google-site-verification=kqIDNYS8AjkGJpX1k4ISZwgj0PahXTylCV7CoZfx9fc
• google-site-verification=GdHNkn-ggThfWyDsB4Y7Tq3ItJd5GfUl0Q48mfovYqQ

Email authentication partial

SPF

v=spf1 include:mailbox.org include:amazonses.com include:_spf.google.com ?all

neutral (?all)

DMARC

v=DMARC1; p=none; pct=100; rua=mailto:re+yyn1ixdo0yr@dmarc.postmarkapp.com; sp=none; aspf=r;

policy: none (monitoring only) · sp=none

DKIM

• google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq2mLqEFqodG8VYeoiWwsz9NnOgv+rqXd5ZB0GLP9OB5PAv9WxnKqzH+aAB+7p9ucMNM5eqiE8V5wEz…

selectors probed

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://holderbaum.io/

findings

• missing HSTS
• missing Content Security Policy
• missing frame protection
• missing content type protection
• missing Referrer Policy
• missing Permissions Policy

Links to (1)

• mitsicherheit.ai×2

Linked from (1)

• piquali.de×2