indexo.dev

instructor.de

.de crawl

First seen 2026-05-06 · Last seen 2026-05-06 · ok HTTP/1.1 200 1846 ms crawled 2026-05-13

DE · 162.55.153.129 · AS24940 Hetzner Online GmbH

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Instructor
Description
Dein Portal für digitale Anleitungen

Technology

Third-party hosts loaded (1)

  • js.hs-scripts.com×1

Registration

Updated
2026-04-14
Name servers
  • helium.ns.hetzner.de.
  • hydrogen.ns.hetzner.com.
  • oxygen.ns.hetzner.com.

DNS records live

NS
  • helium.ns.hetzner.de
  • hydrogen.ns.hetzner.com
  • oxygen.ns.hetzner.com
MX
  • 10 mx0.webpack.hosteurope.de
TXT
  • MS=ms24381408
  • MS=ms85962068

Email authentication partial

SPF
v=spf1 a mx include:spf.server-he.de -all
strict (-all)
DMARC
v=DMARC1; p=none; pct=100; rua=mailto:info@instructor.de; adkim=r; aspf=r
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-15 to 2026-07-14
Expires in 56 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://app.instructor.de/

present
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing HSTS
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
Header values
referrer-policy
same-origin
x-frame-options
SAMEORIGIN
permissions-policy
clipboard-write=(self
x-content-type-options
nosniff
content-security-policy
default-src 'self' blob: data: https://*.instructor.de https://*.youtube.com https://*.ytimg.com https://*.hubspot.com https://*.hubspotusercontent-na1.net https://*.hsappstatic.net https://api.hubapi.com https://forms.hscollectedforms.net https://forms.hsforms.com https://js.hscollectedforms.net https://js.hs-scripts.com https://js.hs-analytics.net https://js.hsadspixel.net https://js.hs-banner.com https://js.usemessages.com; script-src 'self'; script-src-elem 'self' 'sha256-BraSP++BD7aCtbSEKUlB7de4/yO9CY27B1EvWf+luSg=' https://js.hs-scripts.com https://js.hsadspixel.net https://js.hs-analytics.net https://js.usemessages.com https://js.hs-banner.com; style-src 'self' 'unsafe-inline'; frame-src *; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'self' https://*.tepcon.de https://*.hsforms.com; upgrade-insecure-requests; block-all-mixed-content;

Linked from (1)